Seen on trucks & clothes, here's the mudflap girl on a belt buckle or two. 

These trucker lady buckles (lady?) are cut out in the shape of a naked woman.

Belt buckle in the shape of a naked cowgirl wearing just her hat and boots
Naked Cowgirl Belt Buckle £14.49
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Naked lady silhouette belt buckle
Naked Lady Silhouette Belt Buckle £14.49
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Belt buckle in the shape of two naked ladies with "Fast Lane USA" logo
Two Naked Ladies & "Fast Lane USA" Belt Buckle £14.49
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