You can definitely give your guinea pig toilet paper rolls which are the cheapest and environmentally friendly of guinea pig toys or guinea pig accessories out there. Plus they will keep your guinea pig entertained for a long time. The reason they are safe is that while your guinea pig will chew the rolls, they won’t ingest any of it so they are harmless to use as guinea pig chew toys. Additionally, guinea pigs love them. Guinea pigs have been seen to play around with toilet paper rolls for a long period of time. They are able to move them around from spot to spot and they even climb onto them if they can.\r