Some bird toys are safe while others aren't. There isn't really a yes or no answer to this in All honesty. Some hamster toys aren't even safe for hamsters so it really has to do with each particular toy. Some things to remember is that the toy should
-not have chains, fabric, or rope
-be made of hamster safe wood/materials
-shouldn't have gaps or ladders
If you have a specific toy in mind, share it and we can help you out