Here are some NHL Lockout Halloween costumes ideas:
Laid Off Team MascotFind a big animal suit and throw a hockey jersey over it. Make your own cardboard sign and shake a coffee cup with pennies at partygoers.
Hockey Related Revenue (a.k.a. hockey fan)Dress up wearing your favourite NHL team's jersey and hat, stuff your pockets with old hockey tickets and parking stubs, and eat a Burkie's hot dog or some sort of stadium food. If you're up for it, stick a game day magazine in your armpit and wave an obnoxiously big team flag around. Your goal for the night is to see if anyone can define what you are.
NHLer In EuropeTake your favourite player's NHL jersey and cover it in as many advertisements as you possibly can. Bonus points if you paint your helmet gold with flames on it for the night to be the Top Scorer.
Suit up and be prepared to make a lot of weird faces throughout the night whenever a picture is taken because you will also double as the World's Most Unphotogenic Man. To really complete the Bettman costume you have to wear your shoes on your knees and walk around the party all night tugging on peoples shirts asking them if they can pass some potato chips down from the table for you.