Kanban - Bobby Boo Wobbler Paper Craft Topper. Kanban is known for the quality of its card and die cut toppers, you may have seen this design showcased on Create & Craft. This A4 sheet contains the Wobbler Topper of 'Bobby Boo'. It can be used as a stand alone topper or mounted on a rocker base. This Topper sheet is Die-Cut so no need for Scissors (Fussy Cutting).