Galvagni Figures for Polygems

A gem is a plane figure formed by joining four adjacent drafter cells in the same hexagon cell as shown:

It is one-third of a regular hexagon.

A polygem is a figure made by joining gems on the polydrafter grid. The terms are due to Abaroth.

A Galvagni Figure is a figure that can be tiled by a polyform in more than one way—a kind of self-compatibility figure. Here I show minimal known Galvagni Figures for polygems. If you find a smaller solution or solve an unsolved case, please write.