Though black lights were invented to uncover crime scene secrets, they have since become popular for making golf balls glow and luring moths away from ice cream trucks at twilight. Bask in the violet light with today's Groupon: for $10, you get $20 worth of glow-in-the-dark mini golf and remote-control-car racing at Clubhouse Mini Bowl, Golf, and Raceway in Bozeman.

During unlimited glow golf ($10/person) or an 18-hole game ($5/person/game), neon obstacles prevent dimpled orbs from reaching awaiting cups, while black lights illuminate putting paths and flatter impeccable dental hygiene. Across the arcade, remote-controlled automobiles zoom around six lanes and more than 300 square feet of banked twists and turns on a miniature motor speedway ($10/car for 20 minutes). Games of glow-in-the-dark mini bowling beckon sphere hurlers with prices starting at $1. Though not included in this Groupon, luminescent rows of pinball machines and air hockey tables freckle the Clubhouse's interior, creating an authentic arcade experience for an elementary school reunion.