A penny saved is a penny earned.

I got this thing off a Plutomancer who got eaten alive.

You feed it a Canadian penny, it’ll give you back a 33¢ american in the next 24 hours.

You feed it an american quarter and a minor charge, and it’ll give you a moth that can be trained to carry messages; it also seems to be fireproof, but it dies upon exposure to Vodka fumes.

You feed it a Susan B. Anthony dollar and a sig charge, and it’ll destroy the next fake ID that it touches; it takes two Sacajaweas to destroy a legit one, but that also works on credit cards.

You feed it 333 yen and a drop of Alan Greenspan’s blood, and it’ll produce a swarm of locusts in about a 20m radius. The only things they won’t eat are the wallet itself, each other, and PVC (you know, that white plastic they make pipes out of). The exact duration seems to depend on how fresh the blood is, and the denominations of the currency seem to affect the density of the swarm and how fast it eats.