Chocolate wrap?

Hallo my fellow decoupagers,

I have a new technical question for you: how to decoupage with aluminium chocolate wraps?

I collected some of my fave chocolates wraps (haven't eaten all fo them, though) and I would like to use them, but there is something that isn't clear to me:

how can I glue the wraps? 

• is it vinyl glue enough?
• should I lay vinyl glue on the top as with normal paper?

what would you suggest?