In the past I've used washable panties that I bought at the pet store with a pad inside. The only problem with them is that they don't stay on bullies very well because of their short tails. You can check out tinkletrousers.com, they would work well. And there are also instructions about how to diaper a bulldog on line--I think they are on the Special Needs Bulldogs site. And I found that it helped for me to praise my girls and make a big fuss about how darling they looked in their panties--then they liked wearing them!