well, might sound like a weird topic, but listen to anything from the hellecasters, Bumblefoot or Freak kitchen, and you'll get it!!
My favorite funny solo is the one from "I can't play the blues" by ron thal on his shrapnel "hermit" CD... It's filled with unplayable shred licks that show why the song has this name...
I also think that it is important not to take oneself too seriously regarding one's music... All the great players have some licks that are ridiculous, or tv themes etc...
On the "neck to neck" CD by Mark KNOPFLER and Chet ATKINS, on the song "there'll be some changes made" Chet (or mark, dunno) just hits the worst sounding note you'll ever hear... And instead of trying to fix it, he just plays the lick again,and they both chuckle in the background... Well, it's one of the best moment on the CD... Share your favorite solos!!!