You send a fat 8th to each person and they send a fat 8th to each person in the group. You make what ever block you want with their fat 8th. You add fabric to coordinate with their block. Yes it gets a little pricey with shipping, but in the end, you have beautiful blocks of your fabric. The blocks have usually been 12 1/2" blocks. Lovingizabella has been hosting these. Another one will probably not start for several months.