I am not sure how pricy these guys are but... if you want it I am sure they will try and make it
http://www.cycleunderground.com.au/chainringdesigns.htm
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk