A lot of the artisan keycaps you see out there will be cast in polyurethane resin, crafted in clay and mixed media, or 3D-printed in resin and then painted. Some are carved out of wood.

There’s even a product specifically for this purpose: XTC-3D by Smooth-on. However, I happened to have access to the syrup-thick UV resin from an SLA printer and it occurred to me to see ...