My old powerbank broke so I salvaged the 10000mAh cell and bought a new powerbank module on Aliexpress. Features fast charging and USB-C.
Its easy to print and features a little pushbutton to turn on the powerbank. The two halves are glued.
The board I used for this design: https://nl.aliexpress.com/item/1005005792470890.html?spm=a2g0o.order_list.order_list_main.20.185d79d2Zjrc8q&gatewayAdapt=glo2nld
The author marked this model as their own original creation.