Shooby / Dooby narrowly edged out Hanky / Panky this round some others I'm considering if I ever do it again are Razzle / Dazzle, Shake / Bake, Hocus / Pocus, Smoke / Mirrors, Moan / Scream.
The best ones IMHO, are those that infer or describe differences in tonal flavors between the two positions, but also make a great connection in the middle position such as Honey/Mustard for example.