For the best in bouncy birthday humor, give the Grandma's Trampoline Birthday Funny Paper Card available at NobleWorks Cards. Exactly why would this kindly old grandmother be spending so much time on the backyard trampoline that was intended to be used by her darling grandkids? Find out that grandma has a dark side in this ribald and risqué over-the-top birthday card illustrated by Tim Whyatt and printed in the U.S. on recycled paper. This gut-busting greeting is enough to fire up the sense of humor of even the most conservative mind. Get the Grandma's Trampoline Card with free shipping when you order from NobleWorks Cards, which also offers bulk rate pricing on multiple orders of the same birthday card.