To help you to start getting ideas for your major project have a read through these starter points to hopefully give you some inspiration.
This link is to the Loughborough University degree show, where lots of students have to come up with new and interesting projects each year. There are lots of interesting ideas for projects.
Add more starting points for projects i.e. gym 3D scanner / screens to demo how to exercise in the correct form and analyse the user's posture / technique to correct - like the bike scanner in Lex bikes. How to make something that exists better