Before they were used festively, fireworks were mainly used to send neighboring villages important messages about cowboy hats and UFOs. Celebrate scientific progress with today’s Groupon: for $25, you get $50 worth of fireworks at Davey Jones Fireworks. Choose from 12 Colorado locations.

Since 1977, Davey Jones Fireworks has made the night sky sparkle for festive celebrations of independence, freedom, and minor explosions. After browsing a large enough assortment to replace the sun for months on end, customers can stock up for a summer of aerial shows with fountain-style, artillery shell, and multishot fireworks. A six-pack of Nite Siren Fountains ($12.99) guarantees the success of miniature volcano reproductions, and a 72-count brick of spinning Ground Bloom Flowers ($10.99) makes nature's version seem blasé in comparison. Children can join in the fun with family-favorite assortments like the Madd Mixx #4 pack, full of sparklers, snappers, and smoke-bellowing apparatuses ($36.99).