There is a shop in East Lansing Michigan a bit south of the the intersection of US 127 and I 69 called Country Stitches. It is a large shop and has one of the largest sale fabric areas that I've seen in a quilt shop. They also have lots of samples of neat things to make and a huge selection of batiks. If you are taking I75 north to go to Mackinaw then this would not be on your way but you could easily take US 127 North up through the center of Michigan and it is right off the expressway (127) on Lake Lansing Road. Just pick up I96 coming out of Detroit toward Lansing then I496/US127 North and US127 to the Country Stitches.