The red plastic egg that has been sitting on shop counters since 1950, with 0.37 oz (10.6 g) of the original putty inside.

Pull it slowly and it stretches like taffy. Pull it fast and it snaps clean in two. Roll it into a ball and it bounces. Press it onto a comic and it lifts the ink straight off the page. Crayola states it will not dry out or crumble, so the same egg goes into a pocket, a desk drawer or a backpack and comes back out ready to use. No batteries, no screen, no instructions, and it costs less than a coffee.

One egg per order, marked 4 and up on the card. It is the party bag filler, the stocking stuffer and the thing to keep a restless hand busy in a waiting room. The 24 count box of Crayola classic crayons is on the shelf beside it.