My 3d maxings are limited to solid, non-animated objects (or when animated, mechanical), so I cant help you.

I guess that makes this post useless huh? :{

My fiance uses Poser, but I don't think she's gotten into creating models or props.

D.O.P.R

Sorry, I haven't used Max in years. I would suggest asking at 3dbuzz.com, or 3d-palace.com, though I wouldn't directly recomend asking about "sheathable malebits," or will get some strange looks. #

Hmmm, I working on some. I'm currently using (trying to use) the FFD modifier. Here's my latest (months ago but I'm slow) at http://www.furaffinity.net/view/379865/ . I have others in my galley you my want to check out. Lots of glitches so I'm pretty much started over. I plan to experiment more with the deformers. ^^~@~^^

Could always try Dragonfood. I don't know if he has used 3ds Max, but he could probably point you to someone who has used it before and/or help you with it himself.
I've only ever used XSI myself, and even then only for a little bit. Hope your search goes well though.