<< The big problem is, she doesn't pull on the leash. She'll be walking right beside you, see something she wants to get too, and instead of pulling at it, she jumps backwards, ducks her head down between her front legs, and slips right out of the harness. After I tightened it, she did the same thing, just one leg at a time. It all happens in a matter of about 1 sec. , so if you don't catch her at it, shes gone. The dog is a Basenji btw, and they are good escape artist. She has gotten out of her crate before by unhooking the wall somehow, and climbing out. >>
The mummy idea is obviously on the right track then. However, given your description she'll probably just undo the bandage.
Therefore, it's necessary to move onto the next stage - yep, that's it, the biggie - Plaster of Paris.
Just don't forget to include little wheels so that you can take her out for a drag now and then.
Failing that - taxidermy might be your next viable option.
Seriously though, maybe you need to discipline her a little more when she tries the escape tricks.
Neil