“This angry faced plastic lady I found is about the height and width of a pop can. It is able to come apart in three pieces. What is it?”

Answer: "This is an “Angry Mama”. It is used for cleaning microwaves. Take her hair off and fill the first line with vinegar, then water. She’s microwaved for a few minutes, and the steam that is released through her head holes help loosen dried on crud inside of the microwave."