I bought my daughter a roll of this stuff to build cat houses out of the boxes we get from Amazon. It melds with the cardboard, is paintable and super strong. https://www.amazon.com/dp/B01NC0H4YN/ref=sxr_rr_xsim_1?pf_rd_p=9ddc66f6-9fc0-49ff-b2fa-06a39d9859e6&pd_rd_wg=V3jPA&pf_rd_r=E8SHWVG7FSNDHDZTKFYA&pd_rd_i=B01NC0H4YN&pd_rd_w=jzF6X&pd_rd_r=467e203a-6474-4ad4-bebb-8ff22c464227&ie=UTF8&qid=1548442468&sr=1
