Invented by Patrick Rylands in 1966, PlayPlax is now back. Using the same factory in Cheshire used all those years ago means this set is a truly faithful reproduction. They still had the original dye recipes which meant we could perfectly reproduce the beautiful colours. Although they look like perspex, the pieces are actually made of polystyrene. PlayPlax is in the permanent collection of the V & A and demonstrates perfectly that the best toys are the simplest.