I decided to not give them to her because I was apprehensive. Instead I gave her a tissue paper ballHi, personally I wouldn't give either of those things, they could be potentially hazardous to their health. I find the best safe items to give a guinea to play with are toilet roll tubes filled with some nice hay, maybe put some veg in the middle so it's a challenge for them. Most shop treats are full of junk that they're not supposed to eat.