RP: Shower Question -- Etiquette?

Okay, so after your BP throws you your shower, is it customary (or i guess, a good idea) to thank them in some way?

If yes, any suggestions??

thank you cards You also thank them in general for being a part of your BP at the rehersal dinner with a really nice gift. I've gotten a Kate Spade bag, a coach bag, jewelry to wear on the wedding day...that sort of stuff.