Pretty much all I've seen around here were Paul signs - one Obama sign.

And there's one guy I know through the party - he's an active Democrat, and his wife is an active Republican (although they are both fairly centrist) - two years ago, they had two yard signs, one each for the Dem and GOP state legislator candidates, one on each side of the yard. Then the signs for the candidates they agreed on (the Dem governor, I forget who else) were clustered in the middle. :-)