Pactra Bodies
This may or may not be a complete list; it contains the information I have been able to find.
If you have additional information and are willing to share it, please send me an email.

Sometime around the beginning of 1966, the Pactra Chemical Company, a major manufacturer of model paints, acquired Stormer Bodies and began producing their own line of high quality vacuum-formed clear plastic scale bodies. Pactra produced scale bodies of many different types of cars, including fantasy show cars such as the Astronaut and the Jupiter. It is important to note these two Pactra bodies were not Thingies, as there actually were prototypes.
Here are a few photos and scans of their extensive product line: