Customizable Concrete Mold

There are plenty of ABS molds out there but most are made with a very thin layer of ABS that is almost pliable. Giving the mold some more rigidity and breaking it into two pieces would allow us to play with different forms and still be able to remove it easily from it's casing. Let's see what we can come up with!!!

I have been thinking about using Makerbot to make molds for some time now, and I finally got the courage to design something. Now that we have access to customizer, I have so many ideas I can add to this project, so check back for updates as more will be coming. Pictures, additional 3D polygons, letters (raised and indented)...