DIY Chess Sets

I was having a discussion about giant sets sets (like the ones used in Hyde Park Sydney, or Garema Place Canberra) and the topic of replacement pieces came up. Single pieces are often hard to source, and a full replacement set is a little expensive. One suggestion was to simply use traffic cones with a picture of the piece taped to it as a temporary fix. While a practical solution, it probably lacks the aesthetic charm required for such a set.
One solution is to use a 3D printer to make a replacement. For example, someone has used such a device to print a giant rook. This could be used to replace one that has gone missing, and if you click on the link, you will find that inside the rook, is in fact an entire chess set that could be used to play a smaller game!