Polyhedral bowl I made in ceramic along with the slab cutters that I designed in TinkerCAD and printed out on the PolyPrinters.
The bowl was made by what's called stiff-slab handbuilding. I roll out a big slab of clay and cut the individual faces out. Then I let the faces sit for a little while and become a little stiff, but still workable. I then assemble the pieces together and smooth out the joins.
The faces of the bowl are all painted in a black underglaze except for one face that was done in a light blue underglaze. It was then glazed with a dipping clear glaze that I didn't apply very well (my dipping technique is not great). The overall blue tint to the whole piece is caused by microbubbles in the clear glaze. Strangely, something about the chemistry of the light blue underglaze caused the clear glaze to pull away and leave a couple of unsightly pits (these can be seen on the rim here). I'm just going to wave off using that glaze.
I've been making polyhedral works in ceramic for a couple of years or so now but being able to make the cutters has made a massive difference in quality. The repeatability and accuracy versus my old techniques is really fantastic. I'm a big-time math nerd and the symmetries and clean lines of pieces like this really make me happy.
If anyone is interested, I'm considering doing a class sometime in late July or August where we can put something like this together. I'll have several forms to choose from. I want to get clean examples of all of those forms before I consider putting up the class.