Cute Kawaii Chaos - 500 Piece Jigsaw Puzzle (Ravensburger)

Every inch of this one is packed. A polar bear sits next to a banana with a face, a walrus grins beside a fox, and there's a toaster looking thoroughly unimpressed with life while a slice of avocado smiles right back at you. Pizza, pickles, sushi, a swan, a gingerbread man and about a hundred other tiny characters are all crammed together with nothing but white space and a squiggly rainbow border to separate them.

With no background scene to anchor you, this is really a puzzle of shapes and colours rather than a picture — you'll end up sorting by outline as much as anything, since half the fun is spotting what each little doodle actually is. The 500 pieces keep it from being an all-day job, but the sheer number of characters packed onto the board means it's slower going than the piece count suggests.

Good one for kids and adults to do side by side, since there's always another odd little face to point out and argue over.