Japanese artist Yo Shimada, of tat-o architects, has created a series of fragile structures using thousands of brightly-colored post-its.

This isn’t the first time someone has used the good old post-it as an art medium, but it may well be the first time it serves as a building material. Aided by students from the Kyoto University of Art and Design, Yo Shimada painstakingly glued around 30,000 colored post-its to create building components which were later assembled to create a wall-like structure currently exhibited at the Gallery Artzone, in Kyoto.

Visitors were given the opportunity to engage in a dialogue with the post-it structure by writing their thoughts on post-its and sticking them to the facing gallery walls.

via Designboom