Somewhere I have a bunch of information on bone and antler work, but here's a couple of links that might be useful:
General info about working with bone
Making bone needles
Thanks for the links! Definitely a good start for my first bone project.
Anyway...as far as getting flak from the regulars, I talked to a friend of mine who's been going to the Holly, MI renfest since he was a little kid - and currently works there as a knight - and here's what he had to say:
"That's not at all the case. To be sure, there are going to be some dicks who make jokes at your expense. But these are the same kind of dicks who would make fun of you for wearing the costume at a premiere, or that kind of thing. In all truth, renfest is more friendly to you wearing random costumes, because most of us understand that it really is the one place where you can wear that costume and not have to worry about getting strange looks, or being made fun of for being a dork, because, at heart, we're all dorks there.
So, in other words, renfest imitates life, in that there are still a few total *******s there. Overall, though? If your costume is particularly nice, we'll probably just be impressed by it."