There are 68 Origami Designs in CDO convention 2013:

Design	Designer	Page	Details	Photo
Show only designs with photos
Flower garden - from a seed ... a flower is born Flora - Flowers	Vanda Battaglia and Francesco Decio	3	Square Multiple units
Leaves mosaic Flora - Trees and Plants	Paolo Bascetta	11	Square Multiple units Folded from leaves
Polar bear Mammals - Ursidae - Bears	Francesco Miglionico	21	Square
Tree Flora - Trees and Plants	Viviane Berty	22	Square Also in MFPP 2015 Convention Also in Origami Deutschland 2013	Folded by Viviane Berty
Tree and bush Flora - Trees and Plants	Viviane Berty	23	Square 2 units Also in MFPP 2015 Convention Also in Origami Deutschland 2013	Folded by Viviane Berty
Clover Flora - Trees and Plants	Viviane Berty	24	Square Also in Origami Deutschland 2013 Also in Christmas Origami Book 2012	Folded by Viviane Berty
Nanabozho Totem Religion and Holidays	Viviane Berty	25	Square Also in MFPP 2015 Convention Also in Origami Deutschland 2013	Folded by Viviane Berty
Rabbit Mammals - Lagomorpha - Rabbits and Bunnies	Viviane Berty	26	Square With variation
Elena star Geometric and other shapes	Sonia Pillan	28	Square 3 units
Tree - Right first time Flora - Trees and Plants	Roberto Gretter	29	Square
Four seasons quilt Geometric and other shapes	Christiane Bettens (Melisande)	31	Square Multiple units
Coyote Mammals - Canidae - Coyotes, Foxes and Wolves	Leonardo Medugno	33	Square 3 units
Astro flower A Geometric and other shapes	Fioretta Corti Milesi	38	Octagon
Zinnia flower B Geometric and other shapes	Fioretta Corti Milesi	39	Octagon
Swallow Birds - Passeriformes	Lisabeth Bauer	40	Square
Sheep Mammals - Bovidae - Sheep, Goats and Bovides	Tony O'Hare	42	Rectangle - 1X2 Also in Creased Magazine 11 Also in BOS Convention 2011 Autumn	Folded by Rui Roda
Ennea Geometric and other shapes	Dasa Severova	46	Triangle 3 units
Iris star Geometric and other shapes	Dasa Severova	47	Octagon Also in Bogota Origami Convention 2013 Also in Czech Origami Convention 2012 Also in Origami Deutschland 2013	Folded by Rui Roda
Snowflake Geometric and other shapes	Dasa Severova	49	Hexagon	Folded by Marjan Smeijsters
American luna moth Insects - Butterflies	Hoang Tien Quyet	52	Square Also in BOS Convention 2009 Spring Also in Tanteidan 15th convention	Folded by Gilad Aharoni
Anteater Mammals - Xenarthra - Anteaters and Sloths	Hoang Tien Quyet	54	Square Also in AEP convention 2012 Also in Canada Convention 2012	Folded by Rui Roda
Cussinus Hexagon star Geometric and other shapes	Ralf Konrad	56	Square
Rose with base and leaves Flora - Flowers	Sato Naomiki	57	Pentagon 3 units
Ole's plane Toys - Planes	Oles Pidgorny	84	Rectangle
Pyramid star Geometric and other shapes	Sarika Jain	92	Square
Dice Toys - Games	Paolo Bascetta	94	Rectangle - A size 27 units Clever design. Points are from squares
Frame for Eric Objects - Frames	Paolo Bascetta	99	Rectangle - A size Multiple units
Train Vehicles - Trains	Emmanuel Mooser	107	Rectangle - 1X2 Also in Colombian Origami Convention 2013 Also in Origami Design Secrets - 2nd edition by Robert J. Lang Also in Origami USA Convention 2013 Also in The Origami World of Neal Elias by Dave Venables and Marc Cooman	Folded by Grzegorz Bubniak
Box in a box Boxes and Containers	Yamanashi Akiko	120	Square Also in Pajarita Magazine 139 Also in Origami Deutschland 2013	Folded by Francois Ziegler
Sheep Mammals - Bovidae - Sheep, Goats and Bovides	Beth Johnson	122	Square 2 units Also in BOS Convention 2017 - 50th Anniversary Also in Creased Magazine 4 Also in Origami Deutschland 2016 Also in Origami Tanteidan Magazine 148 Also in The Elegance of Origami by Makoto Yamaguchi From a square and a rectangle	Folded from a square and a rectangle of cardstock by Gilad Aharoni
Polina star Geometric and other shapes	Maria Sinayskaya	129	Square 8 units
Star and simple flower Geometric and other shapes	Yehuda Peled	131	Square Also in Origami Flowers and Other Models by Yehuda Peled Also in Origami Flowers and Other Models by Yehuda Peled	Folded by Yehuda Peled
Vase Boxes and Containers	Yehuda Peled	134	Square Also in Origami Flowers and Other Models by Yehuda Peled	Folded from a square of origami paper by Gilad Aharoni
Wizard face People - Occupations - Witches and Wizards	Yehuda Peled	136	Square Also in Origami Flowers and Other Models by Yehuda Peled	Folded from a square of cardstock by Gilad Aharoni
Baby bottle Objects - Various	Cye Newman	139	$ US Dollar Bill
Teddy bear Toys	Federico Scalambra	140	Square 2 units
Septima star Geometric and other shapes	Ekaterina Lukasheva	144	Square 8 units 5-8 units	Folded by Lou Pearson
Boat on hex Vehicles - Boats	Michel Grand	145	Rectangle - A size Also in BOS Convention 2013 Autumn Also in Christmas Origami Book 2012 Also in MFPP 2013 Convention	Folded by Michel Grand
Heart envelope Hearts	Michel Grand	146	Rectangle - A size Also in BOS Convention 2013 Autumn Also in Christmas Origami Book 2012 Also in MFPP 2013 Convention	Folded by Michel Grand
X ray hex-star envelope Letters and Envelopes	Michel Grand	147	Rectangle - A size Also in BOS Convention 2014 Spring Also in Christmas Origami Book 2012 Also in MFPP 2009 Convention Also in MFPP 2013 Convention Also in Origami Deutschland 2013	Folded by Michel Grand
Flower - 3 dollar Flora - Flowers	Robert J. Lang	148	$ US Dollar Bill 3 units Also in Personal Collection Also in The Paper Magazine 96	Folded by Michele Rousseau
Headset Objects - Various	Miroslav Mrajca	151	Square
Slug Molluscs	Miroslav Mrajca	156	Square
Oleo Geometric and other shapes	Aldo Marcell	160	Square 30 units	Folded by Marjan Smeijsters
Star prints Geometric and other shapes	Aldo Marcell	163	Square 30 units	Folded by Marjan Smeijsters
Owl Birds - Strigiformes - Owls	Alberto Calderone	165	Square
Squirrel Mammals - Rodentia - Squirrels	Mindaugas Cesnavicius	168	Square
Bianca star Geometric and other shapes	Carmen Sprung	171	Rectangle - 1X2 8 units
Tetra-box Boxes and Containers	Carmen Sprung	173	Hexagon
Angel Imaginary beings - Angels	Dianne Stephens	175	Square
Convex flower Flora - Flowers	Francesco Guarnieri	178	Square
Sun Geometric and other shapes	Francesco Guarnieri	181	Octagon
Star puff Geometric and other shapes	Francesco Guarnieri	185	Octagon
Snail Molluscs	Sergio Spinolo	189	Square Also in Plegando Al Sur - Argentina magazine 3	Folded by Cyrille Masseys
Hang glider Toys - Planes	Nick Robinson	190	Square
Parnassus dish Boxes and Containers	Nick Robinson	191	Square
Poppy dish Boxes and Containers	Nick Robinson	192	Square Also in PCOC 2015 - All Roads Lead to Boulder Also in World's Best Origami by Nick Robinson	Folded by Nick Robinson
Sailboat 2 Vehicles - Boats	Nick Robinson	193	Square Also in MFPP 2009 Convention Also in PCOC 2021 Also in The Paper Magazine 101 Also in Origami USA Convention 2015	Folded by Wilson Yeung
Snow cube Geometric and other shapes	Nick Robinson	194	Square 12 units Also in AEP convention 2011 Also in Bogota Origami Convention 2013 Also in Mexico Origami Convention 2013 Also in Origami Deutschland 2013 Also in PCOC 2015 - All Roads Lead to Boulder Also in The Paper Magazine 105 and in other sources...	Folded by Nick Robinson
Eagle Birds - Falconiformes - Birds of prey	Leonardo Pulido Martinez	195	Square
Angel Imaginary beings - Angels	Leonardo Pulido Martinez	199	Square Also in Bogota Origami Convention 2014 Also in BOS Magazine 283 Also in Colombian Origami Convention 2013 Also in Mexico Origami Convention 2013	Folded by Leonardo Pulido
Witch People - Occupations - Witches and Wizards	Leonardo Pulido Martinez	205	Square Also in Bogota Origami Convention 2014 Also in CDO convention 2016 Also in Mexico Origami Convention 2013	Folded by Leonardo Pulido
Dog Mammals - Canidae - Dogs	Leonardo Pulido Martinez	211	Square
Cow Mammals - Bovidae - Cows and Buffalo	Leonardo Pulido Martinez	215	Square
Bird Birds - Passeriformes	Erminio Torri	219	Square
Squirrel Mammals - Rodentia - Squirrels	Erminio Torri	221	Square
Mouse Mammals - Rodentia - Rats, Mice and Rodents	Erminio Torri	225	Rectangle
Toucan Birds - Piciformes - Toucans and Woodpeckers	Erminio Torri	228	Square