7-segment display by Mi Wu

Diagrams in Origami Record 2018-4

Back-breaking origami by Gen Hagiwara

Diagrams in Warito Origami by Tsuruta Yoshimasa
Folded from 2 squares of origami paper

Book of matches by Laurie Bisman

Diagrams in BOS Convention 1978 Autumn
Diagrams in BOS Convention 1996 Autumn
Diagrams in BOS Magazine 218
Diagrams in NOA Magazine 179
Diagrams in Origami Paperfolding for Fun by Eric Kenneway
Diagrams in Orison 21/04
Folded from a rectangle of origami paper

Camera by Katsushi Nosho

Diagrams in BOS Convention 1992 Spring
Diagrams in Le Pli 44
Diagrams in NOA Magazine 17
Diagrams in NOA Magazine 130
Folded from a square of origami paper

Camera by Won Park

Diagrams in Dollar Origami by Won Park
Diagrams in Tanteidan 13th convention
Folded from a US dollar bill

Lighter by Nick Robinson

Diagrams in CDO convention 1989
Diagrams in Origami USA Convention 1989
Diagrams in The Best of Annual Collections 1981-1995
Diagrams in BOS Convention 2012 Spring
Diagrams in Das Diagramm 18
Folded from a rectangle of Japanese Foil

Claw hammer by David Shall

Diagrams in Origami USA Convention 1988
Diagrams in Papercopia by David Shall
Folded from a rectangle of Japanese Foil

Computer mouse by Guspath Go

Diagrams in Tanteidan 11th convention
Folded from a square of art paper

Diamond by Satoshi Kamiya

Diagrams in The Elegance of Origami by Makoto Yamaguchi
Folded from a square of Nicolas Terry's tissue-foil

Emergency key by Ted Darwin

Diagrams in BOS Convention 1982 Spring
Diagrams in Darwinism - BOS booklet 72 by Ted Darwin
Diagrams in The Paper Magazine 75
Folded from a rectangle of tissue paper+Japanese Foil combo