Depending on how crazily
(read expensively) you want to chase
recurriations, I present to you the
1968 Topps #280 'Cat Hair' Mantle, where two distinct strands of fur can sometimes be found floating on the breeze between his head and bat...
1968Mantlecathair.jpg
This one is definitely harder to find than the normal version (card on the left above), but they are pretty abundant.