I designed a 3D-printed case for the Playdate to allow me to use a Gameboy Worm light with it. The case has an insert for a 2xAAA Battery Holder and an EXT Link port so I can easily plug and unplug the worm light. I had to use a separate power source because the Playdate's USB C and magnetic charging interfaces do not supply enough power.
The author marked this model as their own original creation.