I just (very slowly or it will break) bent a grid at a 90 degree angle and zip tied it to the cage. My other guinea pig, Buddy, likes to sit in the hay rack so I know it's sturdy. Lol
Just a heads up, Laura -- there have been many cautionary posts on the forum about the open end & the pigs climbing in. They can break a leg having a leg slip down through the squares. Check the forum, but many people have simply attached some cloroplast or something durable to keep them out of the actual rack for that reason. Very cute piggie, though!
