How about a project that is based around haptic robotics ?
I've seen haptics used a few times with virtual drum kits
https://www.youtube.com/watch?v=9ioWDrrJWS4
https://www.youtube.com/watch?v=S8sioJ_3cGk
but I suspect there must be a load more uses for it in the maker space.
Could the team create a remote controlled helping hand with feedback or perhaps enhance the battlebots challenge by adding a more dexterous task to demonstrate the technology ?