a vacuum disk includes a hollow base having an open leading end adapted to engage a flat support surface . the hollow base and the support surface define a vacuum space when the hollow base abuts the support surface . a gasket formed of styrene block copolymers forms an airtight seal around the vacuum space . a hub formed integrally with the base defines an airflow passageway through which air in the vacuum space may flow . a valve is seated within the airflow passageway . a hollow cylinder has a leading end that sealingly engages the hub and a piston head is slideably positioned within the hollow cylinder . a vacuum is created in the vacuum space by abrupt withdrawal of the piston head from the hollow interior of the cylinder . ambient air rushing into the hollow interior of the cylinder abruptly closes the valve before the vacuum is lost .