Ritayedet 40 Pack Glass Favor Jars with Cork Lid, 3.4 oz Small Glass Bottles for Wedding Favor, Baby Shower, Party Favor, Gift Jars for Candy, Bonus Twine and Labels

How about mini glass jars from Amazon that are filled with bits & bobs of beach etc for attendees favors, and have them set up with the artwork, a larger jar of sand & some larger shells & a floral display with the beach theme in mind (sea oats, pampas grass, whatever grows near your beaches). I did a similar project after a particularly sad family trip to the beach. I collected some sand & teensy shells while we were there. I bottled them up in tiny cloche jars , put a hanger ribbon thru the top & gave them to family who were on the trip as keepsakes.