Mich. Comp. Laws § 436.1921

Sec. 921. Notwithstanding section 203, a collector, who is 21 years of age or older, of ceramic commemorative bottles containing alcoholic liquor and bearing an unbroken federal tax stamp or seal may sell or trade the bottles to other such collectors of those bottles without obtaining a license under this act. All sales conducted under this subsection shall be for the purpose of exchanging ceramic commemorative bottles between private collectors of those bottles and shall not be for the purpose of selling alcoholic liquor for personal consumption. A sale or exchange conducted under this subsection shall not occur in any of the following ways: (a) In connection with the business of a holder of an alcoholic liquor license. (b) In connection with any other business.