No question is a stupid one. You know why people say that?
Because NERF sells a non-laser focussed light beam (using a lens and a normal tiny bulb) that extends well over 30 feet but that can be stared into. You can get it for under 20 bucks at hundreds of locations - though you'll have to buy the gun too to get it. I'm sure you can figure out SOMETHING to do with the gun though
As long as you power it from your power board, you should be good (obviously no batteries allowed). Make sure it's permanently attached to your bot, then you've covered the laser rule AND G11.
The light beam is on the lower part of the front end of the gun and is only clips on so you can move it gun to gun. It's also made for kids and can be stared into without any danger of eye damage, so it's pretty doggon safe too!
http://www.walmart.com/ip/Nerf-N-Str...ci_sku=9863513
Of course, you could always just wait till your robot boots up and use the camera image too...