From the deep of the Filmation Archives, two amazing documents surfaced in the form of U-Matics cassettes.
But what are U-Matics?
These tapes, contained mostly SOTS trailers and other promotional materials. But what really stands out are what appear to be two Mattel presentations of the then upcoming Princess of Power toy line.
The videos are not TV commercials, but probably documents for internal use showing the Filmation staff the current development of the line.
In fact, they don't show the final version of the all the toys. Some are prototypes and they display some very interesting differences from the product that eventually hit the market.
Most noticeably, in the first video from left to right we can see a Castaspella with a color scheme very close to what we saw in the cartoon version.
Next to her there is a very different Double Trouble. The helmet looks a lot more like the never-used Filmation concept and the colors may be the intended color scheme for the cartoon, but they also remind us a lot of Glimmer's cartoon colors.
Glimmer is essentially the same of the final toy, while Catra has a blood red top and red gloves!
She-Ra, Bow and Angella molds look like the final ones, but She-Ra doesn't have her plastic tiara yet. Instead, she has a fabric/paper tiara that we can also see on the second video.
Finally, Frosta's Staff it's very different, with the fan shaped as snow flake.
The second video is an overview of the entire line. Unfortunatlely, the low resolution of the video doesn't allow us to clearly see the details, but Enchanta, Kowl and Crystal Castle looks very different from the toys!
Also, check out Swift Wind's color scheme, which then included the blue on the wings. And we also see another reuse of the classic tiger mold (maybe a transformed Catra or an early Clawdeen).