These small molds are called, "Press-Molds" because we press clay into them repeatedly to produce multiple casts from the mold.
Evaluation:
1 point -- No larger than 2X2X1 inch tall
3 point -- No undercuts
3 points -- 3 casts made
3 points -- Minimal bubbles and distortion
10 points total
Heart mold below by Ruby H.
These small pieces can be added, as decoration, to clay cups and bowls like below:
In the piece below there are alot of undercuts but the image could inspire a great press mold.