Where can i find this material

Any thin plastic with a slight layer of water between it and the window will usually last for a while. Squeegee the window, then apply the plastic, or wet the plastic and apply to glass surface.

Wouldn't that be illegal?

I believe you would be correct, Fealola. Most states have laws that specifiy the color that headlight lenses must be.

I race in an amateur racing club called NASA. Anyway this would only be track use and not on the street. See, when I'm on the track I get rock scratches on the headlight. I mostly use painters tape, but I'm sick of buying it all the time, everyone is using it and next thing you know its gone or lost. I thought it would be a good idea to have a material that I could just cut to my headlights size and stick on it, and have it re usable like the holloween decorations i was talking about.

What about that plastic stuff they put on windows to reflect the sunshine outside to make the inside warmer? Isn't some of that stuff removeable and multi-stickable?

I think this is what you're looking for. It's called Static cling plastic and this looks like a source for it. If not, type "static cling plastic" into Google and you'll get the same list of them where I got this one.

Hope it works for you.

By the way, there's a new plastic wrap product being advertised by one of the big supermarket brands (can't remember which one at the moment) called something like Press n Seal Plastic Wrap. That also might fit the application you are wanting.

Perfect!!!! Thanks Flynet.