If you leave the US with more than $5 in pennies or nickels, you could go to jail!
This seems like a weird and arbitrary rule no? However, there's a good reason for it. To safeguard against a potential shortage of these coins, the US has imposed a restriction on the amount of coins that a person can take when they leave the US.
If you remember from previous facts we've published, nickels and pennies are actually more costly than their face value. This means that a person trying to run a scheme could potentially gather thousands of these coins and melt them for their metals.