[Spider-Man]

What about some sort of LED lamp similar to that of the rotating light but not rotating and not included in the weight. Teams should make the holder for the lamp the same just like the flag holder but remove it for inspection. The volunteers hand out the covers for the lamps just like the flags. As for the yellow card system, maybe the mount also includes a flag holder for a yellow flag. Instead of a yellow flag, the cover could possibly be striped yellow and red/blue, or there could be an outer cover that is striped yellow and clear.