So i just finished up my diy paper mache bones. Mostly femurs. I want to cross two of them and mount them down my door frame. without damaging the wood frame. What is the best way to mount them. I tried to string them and do it that way but they were too heavy. i will have about 5 crossbones down each side of the door frame. was thinking black duct tape but dont want it to look cheesy. thoughts?