Would a hot glue gun be the answer? Just use a tiny bead along both edges then smear it so the 2 pieces are joined. I'm pretty sure you can get different styles of glue sticks for many applications. Lace joining poly should be possible? Good luck searching craft sites/shops. *EDIT* I did a bit of searching myself and found this adhesive http://www.amazon.com/Beacon-Fabri-Tac-P...d_sim_ac_2 Seems this may be an option, worth giving a go? Regards