Barbara, I would suggest buying one of those harness things like Edwina wears. Start with one for the both of them if the harness will accomodate their size differences to keep the cost down if it turns out they don't accept it. Try putting it on them in the house while they are in familiar surroundings. Let them wear it for awhile, even if they hunker down and don't move at first. Like Edwina, they might just find something that interests them and they will forget the harness is even there. Just let them where it a couple of times to see how they react. If they stay hunkered down for hours on end, well, that might be a problem. But I think they will soon forget it's there. Then all you need to do is attach the leash and venture out, and once you do that it's pretty much guaranteed there be so much to look at, sniff at and check out that the harness will be the least of their problems.

I think Kelly, NoahsMommy, tried this procedure with Basil, but I don't remember how it went. And Lut's idea of starting with the collar is a good one too.

Tubby was a little terror and had no problem with his collar when I first put it on. Peanut was a little skeptical, but once she got outside she forgot all about the collar since her nose was going a million miles a minute.

Good luck and please keep the camera handy if you decide to try it.