So I saw this last night in a book store, and thought since it seems like words games are (or used to be) popular on here.
But here it goes. You give a main word, and a category for it. So the example I saw was the word is BOTTLES, and the category is "Things made of glass."
So you would take Bottles like this:
And the trick is you can't use the same word twice, so in bottles, with 2 T's you have to use different words. So I suppose I'll get it started:
Word: ENGINE Category: Things that are part of a car!