Credit card shaped key holder
I needed a way to carry around the house keys of my new apartment. I do not carry a keychain so I designed this card key holder to have the same exterior dimensions as 3 credit cards. The keys are held in place with friction and the load applied by the slightly compressible posts.
Credit card shaped key holder
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Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen(Without Speaker)
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(DIY) C64iSTANBUL
Jun 27,2025
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