Not Blog Related Question

This is really going to be OOC and I apologize, but this severely kicked my ass.

My dog pulled my table cloth where my DS game holder was and managed to get into it while I was looking for something for my parents in the basement. I tested the game and it runs fine, but it is hard to get in and out of the DS.

Should I look into a replacement case, or should I be okay sanding this down so it fits? How much should I worry about corrosion if I go with the sanding option?