These stacking cups are a great toy. They don't seem particularly interesting to the untrained eye, but just imagine all the fun a baby or toddler can have picking them up and chewing them, banging them together, knocking down towers that you've built, taking them all out of each other, carrying them round the room, trying to drink out of them, hiding them under the sofa, taking them out of the toy box, putting them back into the toybox, putting them into each other, trying to fit other things into them, rolling them around, throwing them, balancing them on tops of things, knocking them off things, and hopefully eventually he'll learn to stack them!

They come in a nice array of colours and have numbers on for educational purposes, they also have some small holes in the bottom so presumably they can be used as sprinklers (or non-effective cups) in the bath too.