Green clothing, hat with a cotton ball on the end, pointy shoes, and slouch to look shorter.
Hire an actor and rent him an elf costume.
To be an elf you can just wear clothes that make you look like an elf and wear a weapon, it isn't an official title like tour guide or security guard.
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Simply wear some warm clothes underneath. To make the actual costume warmer ad fabrics in the inside.
If you have the cell phone from Nabooti Island, you can dial 1225 to get a Santa/ elf costume and a sack.
Most Christmas Elf costumes range from about thirty to forty dollars. The cheapest is for seven dollars at Oriental Trading Co while the most expensive is over two hundred dollars for a deluxe Buddy the Elf costume.
You need to go into your local Build A Bearville Workshop and ask somebody for an elf access card and then on the back it will have a code. Enter that on Redeem Your Web Code and choose your colour. You also get 1 credit! You can buy an elf costume for your bear!
Put on lot's of green make up or wear a big head costume with antenna and black eyes. Some people just wear wierd stuff like gothic make up. you could wear a hippie with antenna and a green costume.
You could wear Heath Ledger's Joker Make-Up.
You can wear anything you'd like. If you can't buy a Cosplay costume make your own costume with whatever you have and try to make it look similar to a Anime TV show you like.
Not an official uniform but you would be allowed to wear one one if it is from a costume shop etc- so long as you did not try to make any effort to convey the belief to anyone that you WERE an officer.
f35d-wat26-eyd3 is a code