Here's a game seen on another forum. I've copied their explanation on how it works.
I'll start by saying, ""I went shopping for shoes, but they didn't have any. So I bought sandals instead."" The next person will say, ""I went shopping for sandals, but they didn't have any, so I bought (fill in the blank)."" And so on. The items (what you were going to buy and what you actually bought) can be similar...or complete polar opposites. You went shopping for what the previous person bought, and there weren't any left, so you bought...(fill in the blank).
Starting sentence - I went shopping for sandals but they didn't have any so I bought shoes..