pme is edible but i've never used it
i was just going to say that the picture reminds me of the silver foil that i tried to use on a cake--it looked like aluminum foil! i'm sure it's just the lighting on that cake picture but silver foil is dang expensive and i was shocked at how it looked--so i just used all gold instead which of course was twice the price of the silver but it did not look like leftover tree tinsel (not that your cake picture does) --not to mention i really got off on their reaction when peeps asked me what was on the cake and i said '23k gold'
so anyhow--i'd recommend you make sure it's edible for that area of the cake
could i interest you in a partial pack of silver foil--hahaha jkjkjkjkjjkjkjkj
don't hurt me mods ;) i was just kidding