ID - If you're looking for a really strong closer, I can practically guarantee that this effect is 'it'.
There's something that, for the audience at any rate, is absolutely captivating about the coin's firey descent through the deck...I suspect it's because they actually think they can SEE it burning down through the cards - the illusion is really that strong.
Give it some attention, and I'm certain your audience will be talking about this for some days (if not weeks) afterwards. As a bonus, I'd recommend always giving your spectator both their own signed card (which should naturally end up singed on the back) AND one of the 'burned hole' cards.
In addition, stright after the burn-through, *do* make certain you give them their coin to hold - it'll be really still very warm, further cementing what they've just seen
And - no - I'm absolutely NOT Jay Sankey
