Delightful set of Mondrian sticky notes

Designers Assia Quetin and Catherine Denoyelle created this ingenious sticky note desk accessory inspired by the beloved abstract artist Piet Mondrian. "Monde Riant" is €13.75 from PA Design.

Of course it reminds me of pastry chef Caitlin Freeman's wonderful Mondrian Cake below. (Recipe in Freeman's book Modern Art Desserts.)