(a) Document delivered to donee.--If the will, card or other document or executed copy thereof has been delivered to a specified donee, the donor may amend or revoke the gift by any of the following:
(1) The execution and delivery to the donee of a signed statement.
(2) An oral statement made in the presence of two persons and communicated to the donee.
(3) A statement during a terminal illness or injury addressed to an attending physician and communicated to the donee.
(4) A signed card or document found on his person or in his effects.
(b) Document not delivered to donee.--Any document of gift which has not been delivered to the donee may be revoked by the donor in the manner set out in subsection (a) or by destruction, cancellation or mutilation of the document and all executed copies thereof.
(c) Gifts by will.--Any gift made by a will may also be amended or revoked in the manner provided for amendment or revocation of wills or as provided in subsection (a).