Banji Cafe is a ring craft shop located in Hongdae. You can make your own ring, necklaces, and bracelet. After many Korean stars made their own rings at these places, it became a new trend in Seoul. There is an experienced staff to help you to make your own ring from scratch. On the roof, they put up the tent and coffee tables so you can relax while your ring's being done. It's a quite cozy place to come with your date or a group of friends to do some fun activity.