Originally invented by bored henchmen looking to pass the time at Doctor Berserko’s secret Antarctic lair, hockey has since overtaken polo and unicycle jousting as America's pastime. Hop on the bandwagon with today’s Groupon. For $20 to $35, you get one upper 200-level or one lower 100-level ticket to see the NHL’s Columbus Blue Jackets take part in one of two slap-shooting matchups: Saturday, March 27, at 7 p.m. vs. the New York Islanders or Tuesday, March 30, at 7 p.m. vs. the Tampa Bay Lightning. Depending on seating, these tickets are usually $44 or $75. The Saturday, March 27, game is also designated as Huntington Hat Night, and fans will receive a free Blue Jackets hat.