Fire hydrant by Shuki Kato

Diagrams in Origami City by Shuki Kato and Jordan Langerak
Folded from a square of origami paper

Footprint by Paulius Mielinis

Diagrams in Drawing Origami - Volume 1 by Halle, Pere Olivella and Nicolas Terry
Folded from a square of tissue-foil

Gold bar by Mark Bolitho

Diagrams in BOS Convention 2005 Spring - Nottingham
Folded from a rectangle of Nicolas Terry's tissue-foil

Key by Ted Darwin

Diagrams in BOS Convention 1978 Autumn
Diagrams in Darwinism - BOS booklet 72 by Ted Darwin
Diagrams in Ori Magazine 56
Folded from a rectangle of Lokta paper

Man swatter by Jeremy Shafer

Diagrams in BARF 1997 Summer by Jeremy Shafer
Diagrams in CDO convention 2000
Diagrams in MFPP 1999 Convention
Diagrams in Origami to Astonish and Amuse by Jeremy Shafer
Diagrams in Origami USA Convention 1997
Folded from a square of Japanese Foil

Microscope by Kunihiko Kasahara

Diagrams in Latest Small Encyclopedia of Origami by Kunihiko Kasahara
Folded from 2 squares of origami paper

Mirror by Mark Bolitho

Diagrams in The Origami Home by Mark Bolitho
Folded from a square of Japanese Foil

Nut and bolt by David Brill

Diagrams in BOS Convention 1986 Spring
Diagrams in Brilliant Origami by David Brill
Diagrams in Der Falter 8
Diagrams in Quarterly ORU Folding Diagrams - Vol. 1
Diagrams in The Beauty of Origami by Makoto Yamaguchi
Diagrams in The Origami Collection 13
Folded from a square and a rectangle of Tant paper

Pipe by Edward Megrath

Diagrams in BOS Convention 1982 Autumn
Diagrams in BOS Magazine 53
Diagrams in BOS Magazine 98
Diagrams in BOS Magazine 210
Diagrams in La Fisarmonica - QQM 2
Diagrams in NOA Magazine 142
Diagrams in Origami - 30 fold-by-fold projects by Paulo Mulatinho
Diagrams in Origami Paperfolding for Fun by Eric Kenneway
Diagrams in Picture-Perfect Origami by Nick Robinson
Folded from a square of scrapbooking paper

Pocket knife by Quentin Trollip

Folded from a square of Japanese-foil