Oh my god:) when I was suuuuper little we used to play a game where we'd take a college ruled sheet of paper and fold it at the lines. Someone would start with a sentence on top, pass it on to the next. The person it was passed to would read that first sentence, and continue the story on the next line. Then they would fold the line that they read, i.e. the first line, and pass it on to the next person. So, the person writing line 3 hasn't seen line 1, only line 2. Person 4 only sees line 3. This continues to the bottom of the page or however long they want, and we declare the closing statement for anyone to write. When you unfold the lines and starting reading the story, it's drop-dead funny. Mad Libs on steroids. I don't know how you'd implement that on Hubski but you just splashed a bucket of nostalgia over my head.