Fleshlight case
thingiverse
A replacement case for fleshlights. Use a 61.5mm id, 5.5mm high * 5mm wide cross section rubber seal on the bottom. you can probably find a close enough fit on McMasterCarr if you have access to it, or you can print the 'cap no seal' version of the end-cap, which doesn't require a rubber seal.
Download Model from thingiverse
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