DIY cupcake stands - so colorful! Get plastic wine glasses from the dollar store, fill the bottom with M&M's (or color coordinating candies) and put the cupcakes on top. I have glass sundae cups I could use. Fun way to serve cupcakes.
Sparklers create a grand exit -- the next best thing to fireworks! Make it easy for guests by providing buckets of sparklers. Line walkway with lit votive candles so guests can easily light their sparklers.