Klingon Battle Cruiser by Andrew Pang

Diagrams in Star Trek - Paper Universe by Andrew Pang
Wet-folded from a square of mulberry paper

Klingon Bird of Prey by Andrew Pang

Diagrams in Star Trek - Paper Universe by Andrew Pang
Wet-folded from a square of mulberry paper

Klingon Bird of prey by Jens-Helge Dahmen

Diagrams in AEP convention 2004
Diagrams in BOS Convention 2004 Autumn
Folded from a square of Nicolas Terry's tissue-foil

Mr. Spock by Anita F. Barbour

Folded from a square of hand-made paper

Star Trek by Gilad Aharoni

Diagrams in BOS Magazine 272
Diagrams in East Bay Origami Convention 2016
Only Spock is diagrammed. Each folded from a rectangle of origami paper

Romulan Bird of Prey by Andrew Pang

Diagrams in Star Trek - Paper Universe by Andrew Pang
Wet-folded from a triangle of mulberry paper

U.S.S Defiant by Klaus Dieter Ennen

Diagrams in Star Trek and Star Wars - Origami-Raumschiffe by Klaus Dieter Ennen
Folded from a square of Nicolas Terry's tissue-foil

U.S.S Defiant NX-74205 by Andrew Pang

Diagrams in Star Trek - Paper Universe by Andrew Pang
Folded from a square of Nicolas Terry's tissue-foil

U.S.S Voyager by Andrew Pang

Diagrams in Star Trek - Paper Universe by Andrew Pang
Wet-folded from a rectangle of mulberry paper