A common example of a unicellular eukaryote is yeast.

Here are some other examples:

* Amoeba: A single-celled organism that moves using pseudopodia (temporary extensions of its cytoplasm).

* Paramecium: A single-celled organism with cilia (hair-like structures) that help it move.

* Euglena: A single-celled organism with both plant-like characteristics (chloroplasts for photosynthesis) and animal-like characteristics (flagella for movement).

* Diatoms: Single-celled algae with intricate glass-like cell walls.

These are just a few examples of the diverse world of unicellular eukaryotes!