Narwhal of Liberty by cheeseblarg
Posters for sale on Zazzle
Macy's Day Parade Postcards for sale on Etsy
or get one for a bit less, perhaps on ebay.
I have two being auctioned.
(click here to see them)
As a bonus, there is a piece for sale in my Etsy store (that is fairly NSFW) from the time my work was on Regretsy.