Without jewelry, time-traveling medieval knights would cause the vast majority of airport-security lines. Sound the fashion alarms with today's Groupon: for $25, you get $50 worth of accessories from StyleTryst.com.

StyleTryst.com brandishes a pulchritudinous parade of brand-name, high-end jewelry, scarves, handbags, and more. Grab a pair of gold-plated hoop earrings from Gorjana ($44) as adornments for lackluster lobes or props for flea circuses. A large feather row cuff from House of Harlow 1960 ($98) combines soft, natural details with sturdy metal, while a Jane charm set from Rachel Leigh ($48) replicates the whimsy of childhood with sophisticated 14-karat gold. Ray-Ban sunglasses ($149+) protect eyeballs from excess sunlight, UV rays, and ice rays that freeze victims on contact, and hair accessories from Monalda4 and Rachel Leigh ($25–$48) keep coiffures trendy and stylish.