Ninten-drawer is a modern sliding replacement tray for the NES. It is more reliable than the cheap replacement 72 pin connector and doesn’t have a death grip on the cartridge. youtu.be/4lpCNMxGW3s

N64 controller stick modules work by spinning rotary encoders as the stick moves. The stick is and the bowl (typo in title haha) that keeps it in place are made of plastic. Overtime, both the stick and the bowl wear down and get loose. Using a steal bowl with a new stick keeps the original feel with much less grinding.