One of my very lovely colleagues brought in a set of graded storage containers she bought from Morrisons and added them to the home corner as a maths activity. The children have to sort them into the correct size with the correct lid in order to put the final bug kid on. It’s kind of a domestic Russian Doll.
I happened to comment how awesome that was, next thing I know I come in to find a set of them in my locker. She knows me only too well!
No idea of the cost as they were a present but worth having a look in your nearest Morrisons!