Vintage bottle openers in the shape of a tennis racquet.  It is sure to be a converstaion piece at your next party.  The first time I saw one was at Jules' birthday party and I might have carried it around for about 2 hours.  It was one of the original inspiration pieces for starting Marble Fox.  
 
Medium: 5.5" long
Large: 7" long
X-Large: 7.75" long