For all your Fortitude saves.

Marked as WIP: originally, the top came out rotated 60º from having the 20 facing straight-on when it was fully tightened. I don't know if that's just the threading on my tap or if they're all machined exactly alike, so I modded it to line up a little better. I plan on making a few extras, along with a shortened handle that can be used to line them up without printing the whole thing, but for now there's just the one ... alignment.