Michigan is one of 11 states with a beverage container deposit law. Only "beverage containers" require a deposit and can be redeemed. The law states under MCL Section 445.571(b) that a beverage means a “soft drink, soda water, carbonated natural mineral water, or other nonalcoholic carbonated drink; beer, ale, or other malt drink of whatever alcoholic content; or a mixed wine drink or a mixed spirit drink.” Bringing beverage containers from out of state on which no deposit was paid in Michigan for the purpose of collecting a deposit on the containers is illegal. More information about the Michigan Bottle Bill can be found by searching "Bottle Bill" at the MI Department of Environmental Quality website.
Most dry cleaners will take back used metal clothes hangers for reuse.