The Hippy-Hop Wrist Watch is a wristwatch communicator owned by Numbuh 3. Kuki used it in Operation: K.A.S.T.L.E., to call her team to help fight off King Sandy and his Knights of the Round Towel, and in Operation: T.U.R.N.I.P., to summon the H.I.P.P.I.E.-H.O.P. (which was destroyed immediately thereafter).