Another idea using models created by the Flexy-Frame Construction Kit. Print as many as you want and combine together with the three lobed connecting pieces. This could be printed pre-assembled with dual extrusion. One flexible and one rigid filament. Other tessellation shapes can easily be created with the construction kit too. http://www.gyrobot.co.uk http://www.facebook.com/gyrobotukPrint male connections in flexible filament, (I use Filaflex from Recreus) Print female tiles in normal rigid filament. There are a couple of sample sizes tiles and connectors to give you an idea which direction you may want to go. Assemble and glue for more permanent use.