I just started classes to get my AAS in veterinary technology, and we have two rats and two mice to play with. We were told that paper run through a shredder makes a nice top layer for them, so long as it doesn’t include any slick advertising paper or anything like that. Well, my 2 year old LOVES to color, and I sure don’t want to save every piece of paper he “draws” on. Would plain white computer paper with crayon scribbles on it be safe for the rodents?