I first came across this idea on Lay Baby Lay and absolutely love her style and ability to take everyday objects and make them special again.  I am crazy about her use of vintage horse show ribbons and started collecting them and using them in my home, too.  

If you're just using one racket, it's super easy.  Put a long nail through the top middle strings and hang it up!  I paired this one with a vintage pennant and love the simplity!

Hanging the rackets crossed is a little trickier, but not too bad.  It's easier with two people, so you have someone to hold them and you can position them just how you like before making any holes in the wall.  Once you get them how you like them, place a long nail through the strings on the bottom racket.  Do the same with the racket on the right.  The nails may or not be on the top center string, and that's okay!  Once they're hanging, determine where they'll cross.  I used a piece of a Velcro Command strip to attach the throats of the racket to each other.  Once they were secure, I did the same thing with the racket on the bottom--I attached it to the wall with a Command Strip.

Put your lampshade back on and you're all finished!  This is a really easy and inexpensive project and great dupe for an expensive lamp.  I can't wait to try this process out on some vases!