As a cat -rather than a dog- person, I can't comment on the ethics or feasibility of persuading your pet into a wacky outfit (my Sooty would have my hand off if I tried sending him out dressed as a bumble bee!) but I saw this book in town and was quite taken with it!
There are 10 outfits each given in 3 possible sizes.
From the more normal (preppy cardi for a boy, contrast trim French cardi & beret for a girl) to the fancy dress- I liked the commissionaire's outfit with epaulettes & cap, but was less sure about the frog costume! There's a superman hoodie, jockey's outfit, sunflower and of course the bee complete with wings (do dogs really keep these things on??!!)
Anyway if you've got a wacky dog...an ideal purchase!