I made these coasters not long ago for Jacey, she finally got them, so I'm able to share them now! I used this spiral coaster/potholder pattern from Made in K-Town. At some point I'm going to made myself a potholder from this pattern as well since the coasters were so enjoyable to make. The slip stitches around makes these look so good, I'm really happy with how they turned out!
To keep them together, I bought a ring that's used for holding embroidery floss cards and attached the coasters.