A custom caster ring signet of a pile of bones for the Necromolds wargame.
https://necromolds.com/

The signet was created using the blank template and portions of the bone-pile figure:
https://www.thingiverse.com/thing:5723618
https://www.thingiverse.com/thing:3354318

Yes

Fine

The 0.5 mm air holes may get sealed on lower resolution printers.
The raft helps the holes on the bottom to properly print and adhere to the base.
These holes are for easier release when pressing the mold against the clay.
If sealed, it can be easily opened manually with a 1/16 drill bit and a pin/sewing needle.