With what we know from the 1st hint, assuming "locomotion", I think we can look at a couple of possibilities:
1. Trains - we see these symbols linked together
2. FIRST logo - definitely a game celebrating the history of FIRST.
- question - I know there were some minor changes made to the logo that Dean's father originally put together - if so, what year did this particular logo appear.
3. Shapes - multiple game pieces
4. Floor - perhaps not game pieces, but varied surface bumps and obstacles? Certainly would cause "loco" motion driving over them.
Side note- is there a way to change the thread title to say - Hint #2 - read the first 5 pages - so we don't get 250 "beating a dead horse" posts?
Steve