New prop

I was wondering if anyone has ever seen these used & if the material can be painted over easily using spray paint?

Hilarious. You know, I just saw a video for work about these things....they didn't say if they could be spray painted though.....
Also they are meant to be only indoors. So I don't know what you want to use for them for. But I wouldn't use it outside; just in case.

On a windy day, I might not want to, but if it's decently calm...

Or I could simply trap/force the town to fight these things in an enclosed area.  Flying sharks & more hydras would make for some interesting things...

True. However, and if I'm remembering this right, you would have to only do two at a time if you were to make them move. Also I don't know how they would take to the weapons that some PC's carry. First or second time may be fine but after continuous  usage I think they would wear out.

Hehehehe, were you around for the Astral Jellyfish?    Trust me, there are ways to get around props getting hit by PC's.  Need to go out & buy glow-in-the-dark spray paint & some disposable helium tanks.

There will be floating nightmares a coming... 

No I wasn't there for the Jellyfish...(I just started PCing last event) and I can't wait to see these used.