They used acetate on the top of a card and the papercut "stuck" on the inside with the static holding it, I tried this and it works!! Also using spray glue, get a shoe box and hold papercut in box, then spray papercut, then stick to card etc, spray glue then is only on papercut and not all over the card!! Done this too!!
I also use double sided sticky paper and make a "template" for papercut to stick too, then stick template on card, then place papercut on it, then cover remainder of sticky paper that is showing with a fine glitter. Hope this makes sense to you lol!!