One-of-a-kind construction crane model mounted to a bike helmet, wearable as a costume component or just as a novelty. Add a yellow shirt and pants, and nobody will be able to tell you apart from the real thing. Complete with sliding hook platform.
Built by hand out of wooden dowels, I've gotten all the novelty I need from it, so it's time to let someone else have some.
The hemet is large-ish with a strap and some foam padding, and the counterweight balances the length reasonably well, so it is actually wearable. However, it weighs 3-4 lbs in total, and the sliding platform affects the overall balance, so it's a bit unwieldy. Be careful, and take breaks.