Pokémon

Hundreds of Pokémon packed into torn-paper bands, each band a type and a colour of its own: a blue sea serpent and a cannon-backed turtle on cobalt, an orange dragon breathing fire on red, the yellow one with red cheeks on gold, a boulder-scaled snake on grey, a flower-backed giant on green and a pale psychic feline on magenta.

Five thousand pieces of small, repeating creatures on flat colour: sort by band first, then build each type as its own puzzle. Clear a table you can leave alone for a while.