Yes we have. They cost $45 if I remember right. Not a cheap solution, but I was quite tired of getting my clothes peed on by pip. They only last a month, but then you can by refills. The little thing that plugs into the wall is a lot fancier than the glade plugins you can buy at the store.

Hopefully we can ween pip off of them as soon as he is used to be happy with the dog around.