There were some Fiero go-karts at the 35th. Originally, the plan was to let the kids drive them, but the AACA insurance said no.
Instead, the kids got to judge these Fieros. My son really got into it. Truthfully, their judging was more like a preference. Of course, the one with the stuffed what-evers in it won.
If they do this again, I think 2-digit numbers should be used. In kid logic, if the cars are identified as #1, #2, #3, and #4, of course they will choose #1; the chances are much more fair if the cars are labeled 10, 11, 12, 13, etc.
Edit: I should point out that go-karts #2, #3, and #4 could not be judged, according to the rules, because insurance regulations require the fire extinguisher in front of the left front tire, and only #1 fits that. The other 3 go-karts were supposed to have been forced to get the fire extinguisher or removed from the field.