In the crafts section, near the acrylic paints bottles and other glues. I had a hard time finding them too. I had a friend with me who spotted them. The package is not very large, maybe 4" x 3" and it hangs.
Look for "Folk Art Enamels" at Joanns, they are little bottles of craft paint. Should be in that area, it is considered an "accessory" for the paints.