Anchovy MILKSHAKES!...that's IT?

Let me tell you a true story. Many years ago, I rented two rooms in a big house I owned to friends of mine. A block away was a "Tastee Freeze"..similar to Dairy Queen, but trying to compete by offering weird selections of stuff, including 20-30 hamburger toppings and 50 flavors of milkshake.

One day my friend D.W. said he was going to the Tastee....my other friend T.R said, "hey...bring me a milkshake!" D.W. said "What kind?"...T.R. said, "Oh, I don't care...surprise me!" WRONG THING TO SAY! D.W. tried to get a 'real' answer, but to no avail, so off he went, with malice aforethought.
   At the counter he ordered for himself, then said "Oh, by the way...give me an Almond-Sauerkraut milkshake."
The owner asked him twice if he was serious, then made it...but refused to put it in a labled cup, and used a plain, unmarked one!

....So, D.W. handed T.R. his milkshake, waiting for the gasp and choking. Nothing... then T.R. said, "Interesting...what is it?" When told, he said..."well, it's different, but not bad."

Moral..."IT HAS ALREADY BEEN TRIED---SOMEWHERE!" ...and enough folks like T.R. would just shrug and never notice or care! But if you put it on the menu, they'd never order it either.

Now, how about some REAL ideas for making a fortune...like guitar capos which will double as blood pressure gauges!