The best ones I know are
1. A blonde was in a boat in a field. Another blonde was on the edge of the field and she said, "It's blondes like you who give the rest of us a bad name. If I could swim I'd come out there and slap you."
2. A blonde and a brunette were walking down the street. As they passed a flower shop the brunette looked inside and saw her boyfriend. She said to the blonde, "My damn boyfriend is buying me flowers again." The blonde asked, "Don't you like getting flowers?" The brunette replied, "Yeah, but I don't like the idea of spending the next three days on my back with my feet in the air."
The blonde asked, "Don't you have a vase?"