You can purchase an “Inuyama Good-Luck Tour Stamp Book” at the Inuyama Tourist Information Center (at Inuyama Station) and other locations for ¥200 per copy. You can get the book stamped for ¥200 at each of the seven temples and shrines on the tour, and if you collect them all, you receive a special commemorative stamp indicating the fulfillment of your vow at the final temple. You can also receive a unique “profit stamp” at each temple.