Thanks to the hit television show "Mad Men," the late '50s/early '60s era is back with a bang. Make your rec room a vintage space-age bachelor pad that The Brat Pack would be proud of. Clean lines and mid-century furniture should be the focal point of your design. Shop thrift stores and Craigslist for retro-groovy accessories like an RCA radio. Break out your martini shaker, throw some Sinatra on the hi-fi and remember -- you're nobody till somebody loves you … and your rec room.