Pregnancy Reveal ideas?!?

Next week I will be testing and am hoping its a BFP! If I get my BFP next week, my husband and I will be on vacation and I'd like to surprise him somehow. We will be in a tropical area for vacation and need ideas how to tell him the big news! I thought that when we go to the beach I could write a cute saying in the sand to tell him. Any other sweet, fun ideas in mind? Any help is appreciated!