Pureland Hedgehog, designed by Sebastien Limet and modified by me for folding from the loose end of a toilet paper roll.
As the name implies, toilet paper folding is about making origami from toilet paper. In most cases what matters most is the format: a very long and narrow strip, but I can imagine for example modular origami folded from individual sheets. Nonetheless, the usual application is decorating the loose end of a roll which assumes an “infinitely long” strip whose one end can’t be freely used for folding since it is attached to the roll. As for the paper itself, most toilet paper is a kind of tissue paper, but with special properties: very soft, relatively thick and yet not too strong, and the whole strip is divided into individual sheets by perforation. These properties are not too good for origami and limit the kind of models that can be folded from toilet paper.