This leather bag periodically twitches and jerks, as though it holds something alive.

Jumping caltrops function just like normal ones, except that each round at the start of your turn, if no targets are in their square, they move 5 feet toward the nearest enemy (chosen randomly if more than one is equidistant). Upon entering an occupied square, the jumping caltrops “attack” that creature as normal for caltrops. They remain capable of movement for 5 rounds after being activated, then function like normal caltrops until dawn the next day.

Prerequisites: Craft Wondrous Item, animate objects.
Cost to Create: 125 gp, 10 XP, 1 day.