my brother had a friend, took some clear tape (as in the wide shit, not scotch tape) and he taped it to the top of his bong as a decoration (obviously.. not over the mouth peice lol) that shit had been there for a year or more when i saw it, it was a real leaf, no special treatment, it wasn't wilted or brown.. looked like it was picked that day...

i plan to do the same thing should i ever grow a mature plant...