A man and his horse

[flackbait]

what the horse is thinking: Why does this smug bastard have to make ME look like the dork?!?

[Newt]

What the horse is thinking: It's only humane: you should SEE his underwear!

[sprite75]

Mr. Ed Vader

[Leah]

The Horse: You damn fool, you know there's radiation at Auschwitz!

[Newt]

Here we have the proud inventor of the Farm and Garden Vacuuum Cleaner, posing with the prototype one-horsepower model.  Debris is taken in through cyclonic action and emerges from the other end in tidy, easy-to-scoop-up packets.

[Mr. DS]

Guy in background:  "Uh sir, that contraption is supposed to go on the back of the horse."

[Flangepart]

Mr. Ed Vader

"Come to the dark side of the stable, Willllber..."

[Texdar]

Karl found out that making his horse into a vacuum cleaner wasn't really all that practical.

[AndyC]

Pimp My Steed

[Leah]

"...and for &1,000, you can have the one BHP horse that runs on carrots and horse food!"