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Ten-tori uranai(点取占い) means "point-scoring fortune telling," and consists of folded strips of paper, similar to the omikuji found at Shinto shrines. They are sold in sets of 16 at "dagashi-ya", old-fashioned Japanese sweet shops that sell low-priced snacks that children can easily afford.
On the strips of paper there is some writing and a mysterious symbol (one of 4 types, ○, ◐, ◑, ●) along with a number between 1 and 10. There is sometimes a clumsily-drawn picture, too. What characterizes this "toy" is what is written on the paper, which is very different from what you would expect from fortune-telling. It may be in the form of a question, (e.g., "Don't you care if I shout "You are stupid," at you?") an order, (e.g., "Scratch my itchy spot,") a statement (e.g., "You are a hopeless case,") a prohibition, (e.g., "Don't act like you know when you don't,") a wish, (e.g., "I want to play catch with a ghost,") a past tense sentence (e.g., "I felt dizzy at the top of Mount Fuji,") or something weird (e.g., "I've never heard my own sleeptalking,") and other such curious and mysterious sentences.
Nobody here but us chickens!