Design within reach organizes its second won’t-change-anybody’s-life-but-so-fun Champagne Chair Contest. You can use the materials from no more than two champagne bottles. Glue is the only permitted adhesive. Nothing else, neither tape nor paint.

Among the judges are architect Rick Joy, designers Yves Béhar and Angela Adams, and Fernando Amat, a Spanish architecture and design figurehead.

Poster of last year’s chairs.