The first known Talisman Locator was made by Shendu's magic (in fact, it was forged from his own statue body) in The Power Within for the Dark Hand as a means to track down the Talismans. However, Tohru fell on it and it broke in The Dog and Piggy Show. It's shown again when Shendu uses it in Demon World (Part 2) to follow the Chans' trail after they steal several of the Talismans from him.