Yeah, but i've seen the green shit that comes out of the rest of it.
That's what you get when you have a bunch of inexperienced Georgians trying to cook'em. Here's how you prep crawfish:
1) Purchase one plastic kiddie pool
2) Fill with water
3) Fill with salt
4) pour in live crawfish
The salt water makes the crawfish regurgitate. You can leave'em in there for a while while you're preparing everything else. You need a container to dump the crawfish in once they're cooked (We always used a wheelbarrow lined with plastic bags).
Other things needed:
Sausage cut into thick slices
New potatoes (about 10 Lbs for every 40 Lbs of crawfish, which is usually a bag)
Half Ears of corn
Zatarain's Crab Boil
Also needed is a gas burner like a fish cooker. Fill the pot about 1/2 -3/4s of the way with water and Zatarain's. After that, it's all about maintaining because you'll be cooking for a while. Crawfish, potatoes, corn, and sausage. Once they're done, empty all of it onto the plastic, grab another beer, and repeat the process.
Oh yeah, and make sure the crawfish are alive before you start cooking.