Potato clay is an air drying clay made from potato powder. The clay looks clear when it dries, taking on porcelain-like qualities.
NB: Suitable for ages 3 years and over only!
Air Drying Clay: Joining Techniques
Option 1: Score each surface of the pieces to be joined together. Press firmly together.
Option 2: Smooth together surfaces that are to be joined, this can also be done by adding a coil.
Zart Art School Catalogue page: 220