Recently I was cleaning out a closet and found an unopened pack of puppy pads. As I remember using them when my dog was a puppy, the worked well and were very absorbent. I was wondering, Could these be used UNDER my bedding in my guinea pig cage as lining to absord there pee? The puppy pads have plastic edges (Light feather kinda plastic) and like I guess a cottony weave for the absorbent part. If I cut the plastic that hangs over the esge could this possibly work?