http://www.youtube.com/watch?v=pruiFbPSkls
This is from the show's first season, when they were pretty much throwing anything at the wall to see what would stick. My girlfriend and I found this on YouTube last week and we just thought it was so odd that it was hilarious. (I'm still cracking up watching it now.) I don't know if it would count as Dadaism or not. Lefty the Salesman doesn't even attempt to sell Ernie the R (he usually tried to sell Ernie some random thing like a letter, number or sign), he just produces it. Then Ernie pulls out the P, and the game is on. Maybe they had previously arranged this battle earlier. Maybe Lefty hoped to sell him the R, but when Ernie produced the P he knew he was outdone, so he was just trying to save face. I don't see how that could happen, though, because an R actually has that extra leg on it so it has more features than the P, making it the winner. Maybe Lefty should've had the extra leg available so he could've sold it to Ernie. Maybe I should just go eat my Christmas dinner and quit making up ridiculous backstories...