Abstract: A toy vehicle transformable between first and second forms includes an undercarriage, a top member having first and second surfaces serving as upper surfaces of the vehicle in the first and second forms, respectively, a front member rotatably connected to the front end portion of the top member, where the front member has first and second surfaces serving as front surfaces of the vehicle in the first and second forms, respectively, and a connector that connects the rear end portion of the top member to the undercarriage and that includes a separation rotation shaft for supporting the top member for rotation in a direction in which the top member moves away from the undercarriage and a turnover rotation shaft for supporting the top member for rotation in a direction in which the top member is turned over.

Abstract: The invention is an improved yo-yo that features two side assemblies that sandwich a center axle onto which the yo-yo's tether may be secured. According to a first embodiment, each of the side assemblies preferably includes a releasable, disk-shaped rim piece. By replacing one set of replaceable rim pieces with another, a user can quickly and easily change the yo-yo's shape, look and/or functionality. To remove a rim piece, one first removes a lock ring that is secured to the rim piece and blocks a number of openings that lead to grooves in a center-located hub. Next, one employs a twisting movement of the rim piece to cause a number of tabs attached to the rim piece to slide in the hub's grooves until the tabs are aligned with the openings. The rim piece can then be disengaged from the yo-yo.