I purchased the Cool Foot a month ago and thought I'd put up a post about a pretty good product. It's a 1/4" of EVA foam that you stick over the pedal. They sell them for Minn Kota and Motoguide trolling motor pedals. They have 14 different colors and I bought the gray. Fished it in rain and it does give more traction than the regular pedal. Can't be sure of the longevity of the product but at $9.99 each I'll get a new one when it gets trashed.
I give this product an A for form, fit and function.
http://www.tacklewarehouse.com/descpage-CFKOTA.html 
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You see, in this world, there's two kinds of people, my friend.
Those with loaded guns, and those who dig. You dig.