Would this work for kitchen part of guinea pig cage?

I'm not aware that Guinea Pigs even NEED a kitchen... That's probably why they don't want you wasting money on it. It's a want, not anything they need. It would be like me buying my gerbils clothes. It's stupid. But anyway, it sounds like you want a bathroom, not a kitchen, since most kitchens don't have a shower curtain... And I'm not aware of Guinea Pigs needing that either... However, if you really have such an urge to do this, yes. You may. It's completely safe. Unnecessary, but safe. Though using cardboard will most likely result in it being chewed up and urinated on which will ruin it over time. But you can just replace it. An alternative to fleece. I find it hard to believe it will even NEED the shower curtain in the first place and according to my own research: a href="http://www.ehow.com/how_2203990_fleece-bedding-guinea-pig-cage.html" rel="nofollow"http://www.ehow.com/how_2203990_fleece-b…/a you can use fleece...