Cat beds or hideaways are nice but doesn't your cat deserve a little something more? Design a dream home for your kitty with this Fancy Cardboard Cat Mansion! Made using empty cardboard boxes, this creative recycled project takes about two days to put together and paint. Use chalk paint and acrylic paint markers to add some personality to your pet mansion by painting window boxes full of flowers, siding, and shingles. Go all out for your pet (without spending a fortune) with this DIY cat house.