Instructables has put together a way to make further use of your Super Mario World SNES gaming cartridge. You will be able to use it as a USB hub with three ports. The tricky part is being able to translate the instructions from Swedish. The whole project will run you about $28.
You will need the following materials to put together the SNES hub:
1. $10 USB hub from Tradera (Swedish version of eBay)
2. An $8 broken SNES cartridge from Tradera
3. A $10 Special tool for SNES