Without the ingenuity of gem miners, prospective grooms would be forced to fish for precious stones from the bellybuttons of trolls. Avoid upsetting unsuspecting ogres with today's Groupon: for $19, you get a 2-gallon bucket of mixed gemstones for panning (a $32 value) and a geode (a $6 value) (a $38 total value) at Copperhead Creek Gem Mine and Rock Shop, located in Nashville on the southwest corner of the Iris Garden complex.

Located in the beating heart of Brown County, Indiana, the Copperhead Creek Gem Mine and Rock Shop puts wannabe gem hoarders in the scraggly bearded prospector’s seat with buckets of mining rough to sift through using an old-fashioned water sluice. A guaranteed bounty of lauded geological finds, such as gemstones, arrowheads, and vitamin C tablets, comprises the 2-gallon buckets, a mixture gathered from more than 12 mines. From 10 a.m. to 6 p.m. Monday–Thursday and 10 a.m. to 8 p.m. Friday–Saturday, diggers can match a bonanza of earthbound treasures to their names and histories with the stone-identifying information card grasped in their obsidian-flecked fingers. A crackable geode rewards patient panners with a sparkly and hypnotic center, perfect as the shiny crown jewel of an amateur geologist's rock collection or for pawning off as currency to gullible aliens in return for a case of their exotic freeze-dried ice cream.