Sealing spray alternatives?
I'm planning on doing a Homestuck (full grey body paint) cosplay next weekend, and I just realized we're out of the Ben Nye spray but there isn't enough time to order it online. We have a ton of the setting powder in both translucent and grey, and I'm only painting my face and neck, but I still don't want it to rub off if I accidentally touch my face or bump into someone.
Would anyone happen to know if there are any possible alternatives? I've heard that hairspray might work but that it's also unsafe. Or does Walmart/K-Mart/Target/Your average Supermarket carry a decent sealant? I've tried checking myself but the stores around here are always mobbed and I can't ever stop to get a good look at the variety of products.