A cushion comprises a magnet disposed therewithin proximate one or both of two major surfaces in the cushion. A medical diagnostic device comprises a contact surface wherein a part of the patients body contacts the diagnostic device. The contact surface is configured with one or more indentations having a shape configured to receive the cushion. A magnet disposed proximate the indentation is oriented to attract the magnet within the cushion when the cushion is placed in the indentation to retain the cushion therein.
