My now-wife made a post it notes type program that had multiple types of notes (lists, quick to-do, organiser, meeting, multi-note) and was network aware - you could send notes to other users and the like. She went on to work for 3M in a totally unrelated area but this was credited as one of the best projects of the year as it had everything from storage concepts through to network sending.
I on the other hand wrote something that could organise game lan tourneys through UT99 with setup/teardown remote server, provide con string to players, listen for final score, do tournament table via double elim. It was so hashed together I have no idea how they liked it (but my demo of the system was spectacular) but I played to the strengths of my assessors - he kept boxed copies of FPSs in his office and wrote in the language he taught.
We too was advised to stay away from any ticket system, any website (unless I was providing the next facebook) and anything that didn't apply anything you'd learned over the last year or so. I personally stayed well away from AI (not enough control), I wanted something where the outcome would be known and I could "tune" my demo/presentation towards.