I use disposable hides also,like cutting off the end of a 12 pack soda box for my smaller girls,and a shoebox for my bigger girl. That way I can change them out often and dont have to worry about them outgrowing them fast! My girls like their Mountain Dew apparently.. I changed out one of the MD boxes to put a slightly bigger hide in,and well,it got ignored,so I put the box back in and she went over to it immediately :p