The forest always has some, somewhere.

[Rapunzel was soon watching the flashlight as well, so they could manipulate where their shadows go. That was about as much as she figured out and that seemed pretty simple enough. The flashbangs she figured could go one of two ways. Either well or not at all if she messed up somehow.]

I... wouldn't trust myself with those. Mostly because I could always have a clumsy moment and set them off accidentally.