Baseball cards are a fun way to express your enthusiasm for your favorite team or player. You may have even daydreamed about being on a baseball card yourself. With a new free iPhone app called Rookies, you can now put yourself or others on authentic-looking retro baseball card designs that you can share online. If you're a collector, the designs will look familiar to you, like the 1983 Topps design pictured above. To take it a step further, you can have 20 cards printed on premium card stock and packed in a genuine wax pack for $12.99 plus shipping.