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.
DIY: Wired Tea Light Holder : from Remodelista - Simply twist coated wire (jewelry supplies any craft store or maybe wire hangers?) using pliers around a tea light. Be sure to use tea lights with a base to prevent wax drips and fire hazards.
Terra Cotta Candle Holders, so easy to make. You need a couple of terra cotta pots painted with patio paint. Invert them, placing the plate on top of the pot. It is now ready for the candle. Great for summer tables. Use regular or flameless candles.