Good stuff again, Beagle. Sorry I took so long to respond but I didn’t see the thread on the front page and I assumed there were no new posts.
First, I’d like to report back that Silky, in slighty less than 48 hours since I took your advice, is now sitting on command prior to getting her meals. It’s touch and go at other times, but she seems well on her way. So that worked beautifully.
Second, I am a bit confused as to the play biting business. As I tried to explain, I personally didn’t mind the play biting, since I felt I could pretty much control it and/or stop it when I wanted to – and yes, I did play a bit rough with her at times. :::hangs head in shame::: But seeing that other members of the household didn’t have the same success, that she just kept going, I felt there was a need to put an end to it. So for the past few days (2 or 3, she’s only been with me for two weeks) I’ve been using the toy substitution method and I’ve also incorporated a the muzzle clamp and pin you suggested. I only use this method when she gets so overly excited that she’s really not paying any attention and grabs toy/hand/toes indiscriminately. It does produce the desired effect, as she eventually calms down. I’ve also read that grabbing them by the skinfold in the back of the neck and shaking them a bit (as done by the Mothers in the litter) works as well. What do you think?
I really, really want to do this right. I realize she’s a Dobe and what’s playful now will be downright dangerous just down the line. On top of which, she’s being raised to be a companion dog first and foremost. Not really interested in her Guard Dog abilities beyond what nature’s already given her.
As for the tug toys, is it OK to play Tug-of-war with her? I’ve read that it could potentially increase their agression. OTOH, I can plainly see that it’s one of her favorite games (and mine too!). We do it with all sorts of stuff – it was a soft leafy branch she found in the yard today.
Thanks for the tips on homemade toys. She’ll have a bunch of them by tomorrow to add to her ever-growing collection – tennis ball already included BTW. Hopefully, she’ll like them as much as my old, and by now, very beat up right flip-flop 
Anyway, appreciate all the help. We both do actually, since I am sure there’s nothing Silky wants more than to become the best daughter I never had!
I owe you a beer or ten and a tasty tropical bone for your doggie-bag if you’re ever down my way.
plain_jane,
Agree with you on the spaying business. I think it’s a good thing for all involved. I am not even remotely interested in breeding, and secondly, there are enough pets ending up in the street as it is. Never mind all the health problems already mentioned.