Pretty small stash can
thingiverse
Larger version of my Itty Bitty Stash Container. Exterior dimensions are 30mm dia. x 20mm H. This was modeled with a slight interference fit between pieces to keep the halves from falling apart. I printed one @ 0.25 layer height, 30mm/s out of clear PETG and the halves fit nice and snug, but you can still easily separate the two by running a thumbnail along the seam between.
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