Knurled exterior stash tin. Fit's £20 perfectly when rolled sideways. The wall mount isn't required unless you're planning on screwing it to a wall. At a guess, i'd say it could hold > £400 of notes.

Print details: 3 walls, No supports, raft not required.

Note: After printing, the ‘Male’ thread (the stash tin itself) may require a little bit on sanding to create a slight chamfer, to encourage the threads to join. Perfect fit afterwards