Well, we could always incorporate corn kernels and oil barrels on our currency:
These and other lulzy ideas for currency redesign located here.
Dude, those look like food coupons. You know, the kind that skanky single welfare mothers, with rugrats in tow, generally bring into the store and use to buy, like, a piece of bubble gum. They buy pieces of gum, one at a time, which cost five cents, and pay for it with a dollar food coupon so they can get 95 cents back. If they do it four times, they'll have $3.80 in coin, which they can use to buy a pack of Marlboros. It's actually pretty clever, if you ask me.
Anyway, I don't think we want our currency to look like food coupons.
You're a genius with words, I must say.