A couple from Utah named Jacob and Natasha Jones got married earlier this month, and they came up with a unique way to throw the bouquet.
They had a human SLINGSHOT installed that catapults you through the air. Basically, you're attached to huge rubber bands that whip you back and forth, but you don't actually LAND anywhere.
First Natasha did it and tossed her bouquet. Then Jacob did it and threw the garter belt. (Search for "Bouquet and Garter Toss from a Human Slingshot." She goes at :18, and again at 1:02. He goes at 1:45.)