This is a wheel kit to allow the CupCake MakerBot to build a wheel larger than the standard 100mm x 100mm MakerBot platform allows.
As you can see in the more assembled image that it is easy to make paper/card wheel hubs with different "faces" on them to alter the look of the wheels ... Christmas, Halloween etc... but the faces can also be cut into thirds/fourths to MakerBot them as part of the wheel building too.
This is another of many entries to the makezine.com/go/makerbot contest ...
blog.makezine.com/archive/2010/04/makerbot_giveaway.html
I really need a job ... but I can design a custom part if you like on contract.