Roll a clay slab that is about 1/4" thick.
Create a paper heart template and place on the clay.
Use a wooden skewer or clay needle tool to cut around the paper heart into the clay.
Smooth the edges and rough spots with water on your finger.
Score, add water and blend a small coil onto the back of the heart near the middle where it will sit on a table.
Pull up the edges and mold the dish in your desired shape. Lay on crumpled up paper for support as the trinket dish dries.
Your air dry clay will need at least 24 hours to dry. You can use extra fine sandpaper to sand any rough edges of imperfections.
Add color to your dish by using paint or other techniques. Acrylic Paint is a good option for painting air dry clay.
Once the paint is completely dry, cover the entire surface with a clear varnish or your choice.