There are 38 Origami Designs in CDO convention 2003:

Design	Designer	Page	Details	Photo
Show only designs with photos
Sunflower Flora - Flowers	Nilva Pillan		Square Also in Doctor's Origami Dream Book by Toshikazu Kawasaki Also in Encyclopedia of Origami for Children and Adults by Sergei Afonkin and Elena Afonkina Also in Origami in Fiore - 2nd edition by Nilva Pillan Also in Origami in Fiore - QMM9 by Nilva Pillan Also in Origami Tanteidan Magazine 80	Folded by Ondrej and Radim Cibulka
Roosevelt elk Mammals - Cervidae - Deer and Moose	Robert J. Lang	1	Square Also in Origami Design Secrets - 2nd edition by Robert J. Lang	Folded by Eyal Reuveni
Stag beetle Insects	Robert J. Lang	14	Square
Hermit crab Crustaceans	Robert J. Lang	28	Square Also in Origami Sea Life by John Montroll and Robert J. Lang Also in Sea Creatures in Origami by John Montroll and Robert J. Lang	Folded by Nicolas Terry
Seal Mammals - Pinnipedia - Seals and Sea Lions	Nick Robinson	35	Square
Star Geometric and other shapes	Nick Robinson	36	Square 5 units Also in BOS Magazine 133 Also in Origami USA Convention 1989 Also in Classic Origami by Paul Jackson Also in MFPP 2004 Convention Also in MFPP 1991 Convention Also in The Encyclopedia of Origami Techniques by Nick Robinson and in other sources...	Folded from 5 squares of holographic paper by Gilad Aharoni
Mammoth Dinosaurs and Prehistoric Animals - Neogene - Mammoths	Nick Robinson	37	Square
Kite Toys	Nick Robinson	38	Square Also in MFPP 2004 Convention Also in The Origami Bible by Nick Robinson Also in BOS Magazine 299	Folded by Nick Robinson
LL2 Toys - Planes	Nick Robinson	39	Square
Plate 2001 Boxes and Containers	Nick Robinson	40	Square
Fish Fish	Nick Robinson	41	Square
Arrow tessellation Symbols	Nick Robinson	42	Square Also in MFPP 2004 Convention Also in Der Falter 36 Also in The Origami Bible by Nick Robinson Also in Nick Robinson's Beginning Origami Kit by Nick Robinson	Folded by Nick Robinson
3 mexicans on the toilet People	Nick Robinson	43	Square
Sauce container Food	Pasquale d'Auria	44	Square
Diver's mask Sports and Athletes	Pasquale d'Auria	48	Rectangle - 1X4
Pacman Media and Culture	Pasquale d'Auria	52	Rectangle - 1X3
Pacman ghost Media and Culture	Pasquale d'Auria	52	Rectangle - 1X3
Flower Flora - Flowers	Daniela Carboni	57	Square
Modular Geometric and other shapes	Daniela Carboni	62	Rectangle 6 units
Mina Geometric and other shapes	Enrica Dray	63	Square 30 units
Modular Geometric and other shapes	Gianna Alice	66	Square 10 units
Locomotive Vehicles - Trains	Federico Scalambra	68	$ US Dollar Bill
Crocodile head Reptiles - Alligators and Crocodiles	Roberto Gretter	72	Rectangle
Beehive Geometric and other shapes	Roberto Gretter	77	Hexagon
Icosidodecahedron Geometric and other shapes	Roberto Gretter	82	Square 30 units
Truncated icosahedron Geometric and other shapes	Roberto Gretter	84	Square 30 units
Molecular shapes Geometric and other shapes	Francesco Decio	86	Rectangle - A size Multiple units
Lizard Reptiles	Mauro Pucci	94	Square
Dragon Imaginary beings - Dragons	Mauro Pucci	100	Rectangle - Long strip
Bird of paradise Flora - Flowers	Oscar Monteza	161	Square
Swallow in flight Birds - Passeriformes	Oscar Monteza	164	Square
Eagle in flight Birds - Falconiformes - Birds of prey	Oscar Monteza	166	Square
Dragon Imaginary beings - Dragons	Gilad Aharoni	170	Square Also in Orison 28/05	Folded from a square of Japanese Foil by Gilad Aharoni
Bucks Money Media and Culture	Gilad Aharoni	172	Square Also in Israeli Origami Collection Volume 1 Also in Origami USA Convention 2000	Folded from a square of origami paper by Gilad Aharoni
Fish Fish	Francesco Miglionico	176	Square
Wheel 1 Geometric and other shapes	Pietro Macchi	177	Square 8 units
Wheel 2 Geometric and other shapes	Pietro Macchi	180	Square 8 units
Modular structure Geometric and other shapes	Pietro Macchi	182	Rectangle - 1X2 Multiple units