i dont reconend it, they will try and eat it. they will try and eat plastic bags too if you give them the chance. there not to bright when it comes to things like that. you need to get a pigloo or just some normal card boxes with no tape on. i also hope your not just getting one as they need companie or they get lonely.
That depends, Can you go **** yourself?
No i found that out the hard way they will get sick because of the adhesives and guinea pigs will eat plastic.
You can use whatever you want, as long as the little guy doesn't chew on it and doesn't hurt itself on sharp edges.