You know about Luther Burgers, right? They're burgers with glazed donuts in place of the bun. Here on the West Coast, where In-N-Out Burgers are often located within spitting distance of a Krispy Kreme, a cult of Krispy Kreme / In-N-Out Luther Burgers has been spawned. (Added bonus: They're named after Luther Vandross.)
It was only a matter of time before someone decided to cobble together a hybrid KFC Double Down / Krispy Kreme sandwich -- possibly both the best and worst fast food sandwich ever created. Check this out:
(Thanks for the link, Pam!)