LR44 battery case with a nickel coin
thingiverse
Update: Added a case for 4x LR44 batteries and a waste case (with a recycle logo) Case for 2 LR44 cells, which uses PET soda bottle screw cap made by https://www.thingiverse.com/ondrejp_sk/designs My remix: I just made the base a little wider and added a part where you add a 5 cent coin, a nickel. Glue the two printed parts together by using Loctite Super Glue Precision. The nickel has a perfect fit on the battery lid of Pentax cameras.
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