I actually saw a bulldog in a Shrek costume last Halloween when we were walking along the esplanade getting ready for the Halloween Parade to begin.
The squeals from all the children who saw the dog brought smiles to both my husband and I's faces as it was sheer infectious enthusiasm, even my daughter who was trying to be nonchalant about the entire evening couldn't help but emit a 'ooohh, look mum it's Shrek' before realizing that she sounded like a child (she'd just turned 10, but in her mind she was much older and merely there to placate her parents)!
What do you think of this Shrek costume? I love it and I'm sure (after what I saw last year) that it is bound to be a hit for you if you decide to get it for your dog.
This officially licensed Shrek costume even includes boots like Shrek's which I think just really set it off.