In the vein of the venerable Catprin Tailor (which sells outfits that allow you to dress your cat up as a Japanese schoolgirl), Pets In Uniform provides a product to help destroy the self image of the animal you hold most dear.

From the site:

Imagine: your dog, cat, or other pet in full military regalia. We make this fantasy a reality. Using the latest digital techniques, we combine a photo of your pet with the uniform and background of your choice.

STEP #1: You choose a uniform and a background.

STEP #2: You upload a close-up digital photo of your pet.

They currently have a "holiday special" (Valentines Day?) to provide a photo for only $19.99!

Their gallery shows a number of examples of their work.

[Thanks to Dave for pointing these out!]