Toughest One Yet.......

I’ll be impressed if anyone on this board remembers this. It’s a very early memory for me in the very very early 70s maybe late 60s. Saturday or Sunday morning early cartoon.
The cartoon was on very early in the morning

All I remember were these space aliens or people flying around in spaceships that were not much bigger than the characters themselves. They may have been attached to their ships like it was clothing for them. The saucer ship fit around their bodies, and you could see their heads because of a glass bubble surrounding them.

I also remember they were silent, there was no talking or dialogue. The only sounds came from the sounds made by the spaceships flying around. Almost like fast funny bleeping sounds.

It’s so early from my childhood it feels like a dream but it wasn’t.