This is a brand new item with free shipping.  I looked for interesting knobs when I built Biscuit, but eventually settled for a tractor one.  The seller has a variety of branded knobs also: http://stores.ebay.com/LOST-IN-THE-50S

“For years, I have had bidders ask me about a suicide steering wheel knob that would be good for real heavy duty use on trucks, fork-lifts, tractors riding lawnmowers and will work for handicapped drivers.

WELL I finally found one that will fit the bill for all of these uses and more. This top quality steering wheel knob is constructed from heavy-duty aluminum and steel. Ball bearings give it a smooth turning action and the tough mounting brackets provide a very strong hold on the steering wheel when installed properly.”

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