Octahedral holonomy maze rooks

Two "rook" pieces for use in octahedral holonomy mazes.  Due to Shapeways' pricing for small parts, it costs about the same to get two rooks as it does for one.

These rooks are compatible with Octahedral holonomy maze 1, available at  http://shpws.me/SFcM, and Octahedral holonomy maze 2, available at http://shpws.me/SFcL.

If you go around a loop on a curved surface, you come back rotated - this effect is called holonomy. In these holonomy mazes, the rook cannot rotate in place; you must use holonomy to dodge its arms around the pegs blocking its way and escape!

Note that Shapeways' processing for this material polishes the parts. However, they will still need some working in to move smoothly.