Bicycle Wedding Invitations Bicycles Bikes Bicycle by DeanPenn
Not this design, but pocket idea has potential
Tandem Bicycle Flower Basket Vector Clip Art | Collection of high quality vector images from GrafikBoutique. Can be used for: paper stationery (invitations, cards, labels, tags, wrapping paper, packaging), digital or paper scrapbooking, home decor and other DIY projects.
Google Image Result for http://assets2.notonthehighstreet.com/system/product_images/images/000/592/365/original_made_for_two_bike_vintage.jpg%3F1335208830