There's about a billion ways to display jewelry, but I'm really digging the shutters-as-earring-holders such as this one by artworkbyandrea:
I love how simply and cleanly everything is laid out in UnapologeticMe's booth:
Do you sell an item that calls for a "theme-y" display, such as cute food or plush birds? Take a cue from glue&glitter, who used a baking sheet to show off her felt cupcake pins:
You can do a really great display using things you have around the house. Check out monda loves' stroke of genius using a dresser:
Looking for a creative, cheap way to make your own banner? Team member claudiasburningink has a great one to show off:
Lastly, don't forget to show off your business cards to make sure every passer-by grabs one. shopmimigreen has an eye-catching solution:
I hope this helps inspire you! If you have any creative display ideas, tell us about them or -- better yet -- include photo links in the comments.