As my nieces and nephew get older, I have a hard time trying to figure out what to get them for their birthday's and Christmas. On top of that, they live on the other side of the country from me so shipping can get expensive. But I know for sure there is something they will always like...cold hard ca$h! I've given them a twenty in a card plenty of times, but that is boring. 2 years ago I sent my nephew, who was turning 13 years old: 13 $1 bills, 13 quarters, 13 dimes, 13 nickels and 13 pennies. I put it all in big box with packing peanuts. I taped some of the money to the peanuts and some to the sides of the box.
I used latex balloons and 20 $1 bills.
I rolled each dollar bill ...
pushed it into a deflated balloon and put a little bit of air into each balloon.
Then I gathered them all into a cardboard box, closed it up with a birthday card and sent it off. (I know USPS really frowns on sending cash through the mail, so use your discretion) I think my nephew was pretty happy with his gift.