Cool, I never thought about Dominican Republic.
One thing I've found thats an added bonus: At the local magic shop they have money clips with full color pictures of cards engraved on them. I bought two identical clips, and I keep my slowburn/hundy 500 bills in one clip, and four crisp dollar bills in another. At the start ofthe trick, I remove the clip mkaking sure that the front side is never made visible. As soon as the trick is over, I put the clip back on and put it in my pocket. Rarely do they ask to see the bills, but if they do, I'm prepared. It's easy by feel to grab the clip with the real bills, pull the clip and give them all four bills to inspect. This provides an excellent opportunity to perform "Lucky Coin" as described in Card college, but using the clip instead of a coin.
In todays ever expanding US quarter backs, the money clip makes even more sense, as previously I've had people turn over the coin to see what state its from. Why on earth would anybody prematrely turn over a money clip?
Total expenditure was about $30 for the two clips, plus the cost of the bills.
The money clip with "the lucky coin" routine is such a natural as long as you don't tip your hand as you remove the clip. It 'flips' better than a quarter, and because it is an exact duplicate of the card (in my case Jack of clubs), it gives plenty of misdirection for the one sleight required for the card trick, and it's a real jaw-dropper for very little effort.
Even if you're not prepared (and this is a wonderful way to switch in a cold deck), all it takes is a casual display of the cards as you prayer cull the required card to the top before the beginning of "The lucky coin" while showing the deck is all different. Just another hidden gem in Card College that really ties in nice with the bill routines. And what a wonderful way to switch decks if you happen to like stacks.