Have your guests hold mason jar lanterns with led candle lights for your send off.Mason Jar Garden Lights DIY Lids Set by TheCountryBarrel I can do this for the backyard! Switch out candles for battery or LED candles.
An easy DIY project for candles, shells, sand, a bit of sea fan. Just gotta get a bowl fill it with some pebbles/sand and candles. I could put my Jamaica shells in something like this! So easy and pretty!