You can instantly generate your own paper Bitcoins here;
http://cur.lv/m1b1

Click "Paper Wallet" at the top, generate a wallet or two,
and simply send as many bitcoins as you need to the address on it; 
You can then print it out and give it to somebody to pay them in bitcoins!
It's also good for physically backing up your bitcoins in case of a computer failure
or other situation in which a virtual wallet would lose your BTC.