Group
Association, Team
Sew thread through your top hat and to the top hats of other people you know and you'll turn into a group of top hat wearing people. You're all connected by the thread now, so everyone will assume you're a group, even if that's all you guys have going for yourselves.
そ
くみ
None
This group decides to make soap (そ) together. You take off your top hats and use them as soap molds, mixing together all of your favorite smells and colors.