by .robb. » Jan 18th, '11, 06:40
Let 'em keep it. You more than likely don't need to replace it right away, assuming that none of your tricks need exactly 52 cards. Even then you can just add a Joker for the time being.
If you are forcing, purchase a One Way Deck. Unless the trick calls for a specific card you will want to get a low value that leaves a lot of white area like the 2's and 4's. Makes the signature easy to see and all of that good stuff.
Use stickers when practicing. Fold over a thins strip (adhesive to adhesive) prior to applying the sticker so that you can easily remove it later. The cheapest stickers you can find are usually the best because they'll usually have the least amount of adhesive. Too much adhesive on the sticker means that some will get left behind when the sticker is removed. This leaves you with a quasi-repositional/R&S surface.
On my list of Things I Should Pobably Try But Haven't Yet is a trick that works along the lines of Locked Deck. IIRC, the working is exactly the same but the presentation and patter changed. The spec selects a card from a deck and signs it. Card vanishes from that deck and reappears in a different deck of cards, all of which have been signed by random people in various inks. Presumably used in previous performances by the magician.
One could also use it with a dup and make the signature vanish/jump/reappear/etc. using any of the million color changes. Similarly, you could use it in a packet trick as well.