It was colored tape – is that duct tape? It wasn’t double sided. It was red colored and it was on the inside, so you couldn’t see from the outside. And then covered with the strings of leaves and flowers.
EDIT – This is exactly what I used – http://www.shop3m.com/70006287067.html?WT.mc_ev=clickthrough&WT.mc_id=shop3m-AtoZ-duct-tape