I just finished a RAM-Cartridge for the Tomy Tutor/Pyuta consoles. The cartridge has space for sixteen 32kb games, while currently only 3 games are used. So alot of space for new homebrew stuff!
All carts get a nice 3D-printed cartridge case. The eeprom is easily changeable, if new homebrew get's released.
You will need my "Game-Adapter" board to use this RAM-Cartridge with your Pyuta/Tutor console.