I was cleaning out my winter clothes bin and came across an extra fleece neck warmer and a fleece hat no one wears anymore. So I turned these into a hammock and a cozy nest. The neck wamer I just put through a board I had running across the cage and the hat I hung up using a twist tie. It was soooo cute to see my 2 girls in the hat. A few days later they had chewed into the hat and gone inside it and its now their new nest. This stuff was from the dollar store.