I use the cutting boards also, they work great in the Vision cages. They a pliable, like a mat, thin, a 3 pack you get at Walmart, I think the brand is Mainstays and you can swap them out (I have 2 sets) to always have a clean cage bottom. I think they were a really good idea of Illusive's and work good with my kind of cage and I'm sure can be cut to fit any cage.
Just put a boing in Pipsqueak's cage. but so far all she is doing is looking at it. It won't take her long. I got another kind for Chirp but haven't got everything I want for his cage yet.