Does anyone own a Triangle? The instrument?

So this is very stupid...

At my university (UZH) are organising a back to school party, and everyone coming with a Dreieck, the visibility band thing that children wear to be more visible by cars, will receive a free shot.

I don't have one of it but I like the idea of coming with the wrong kind of Dreieck, and I don't even care if I get a free shot or not.

So I'd be grateful if someone could lend me their Triangle. I know I can buy one online for pretty cheap, but I don't want to waste money on something I'll only use once.

Ps. I know that the instrument in german is called Triangel and not Dreiheck.