Beware if you're entertaining guests with these kaleido trays. You could find yourself spending hours placing them into different geometric shapes and arrangements.
They come from the brain of Clara von Zweigbergk, a former graphic designer. They come in more than a dozen shapes and colours, ranging in price from $US17 to $US84. It says they're not actually OK for food, which severely curbs their cool factor, but you could easily find heaps of other uses for them around the house -- including a new party game. [A+R Store via Design Sponge]