Here is one of the "single" stamps that you can purchase from Stampin' Up. It's called Extreme Guitar and makes a great card for a teenager (boy or girl).
I used Bordering Blue for the base. I rarely use this color, matter of fact I am still using the sheets from my Assortment pack that I bought when I first started stamping almost 5 years ago. The funny thing is, I ended up using the paper twice in one day. Check back tomorrow to see what else I used it on.
Thanks for looking,