After experimenting with different plates, I chose an antique blue and white from the depths of my kitchen cabinets. I kept trying to find a shade from my dusty collection in the linen closet, but finally decided I'd have to buy one. Then I saw this idea on Pinterest using sisal rope and a hot glue gun and the light bulb clicked on.
After a trip to the local hardware store for 100 feet of sisal rope, a pack of glue sticks for the hot glue gun, and a few burned fingers -- I present the customized $11 Target lamp.
By the way, that Sand and Sisal blog has all kinds of DIY coastal decorating ideas -- enough to keep me busy until the next beach trip!