do a search for "full moon caps" or "racing moon caps". I have looked at them before. they are on the expensive side though (as far as hubcaps go). I have heard mixed reviews on how they affect fuel economy. I have heard that they help just not much (one person reported 2-3 tenths of an MPG better) but they do look really cool.
Be the change you wish to see in the world
Older hubcaps can be found cheap and are pretty decent...Pinto
2006 Jeep Liberty CRD...Founder of L.O.S.T.
OME 2.25" Lift w/ Toyo Open Country HTs 235/75/16s
ASFIR Alum Eng/Tranny/Transfercase/Fuel Skids
2002 Air Box Mod...Air Tabs (5) on Roof...(3)each behind rear windows
Partial Grill Block with Custom Air Scoop and 3" Open Catback Exhaust
Lambretta UNO150cc 4 Stroke Scooter