Boozilla

deleted by creator

There’s tons of articles out there on how to use old cell phones for this. Here’s one of zillions:

https://www.airdroid.com/remote-control/best-free-app-to-turn-old-phone-into-security-camera/

I’d try clear silicone. Very easy to work with, won’t stain, and pretty easy to peel off if you need to. Won’t hurt, will probably help.