可变数值加密

I made this as part of a treasure hunt, so I embedded the Tryglavian symbol (EVE Online) in the side as a clue.
The numbers drooped a lot because a lot of them are make sharp corners over nothing, so I made them shallower in Tinkercad. It helped but definitely didn't make them perfect.
The teeth/lock paths on the inner and outer tube will need support of some kind.