Come on guys...you love the movie.  I can't explain it.  My wife asks why I think Caddy Shack is so cool.  I didn't like it when I was a little boy, but when I could understand the humor, I went crazy for it.  "What does that sign say?.....no bare feet.....What does THAT sign say......no fighting.....well, then, what does it mean....no fighting....you owe me one gum ball machine".  What a bunch of ridiculous lines.  But, they were timeless.  I took a screen shot of that sign and had it replicated.  Yes, it was copy-write whatever.  But, they sold like hot cakes on eBay.  Here's the screen shot and a photo of the tin sign that I had made.