I like this idea, but would try to extend the water theme. Put plastic fish inside with a gift card to Bass Pro Shops! A gift card to the pool store or local water park would be fun too. I'm all about making the gift card connect.
DIY your Christmas gifts this year with 925 sterling silver photo charms from GLAMULET. they are compatible with Pandora bracelets. Free, Printable "Made With Love" Gift Tags from Lyons Johnson / She Wears Many Hats
Christmas Gift Tags - Christmas Tree - dimensional sparkle gift tags - gift tags - 10 tags
Cute handmade Christmas gift tags to brighten up your gifts! Tags are made with quality heavy card stock, decorated with dimensional foam mounted trees and some glitter card stock embellishment. Tags are hand stamped and measure approximately 2 by 3 tied