I made this a while ago but going through my gimp 2.8 and gimp 2.10 I can't find what plugin or script I used to make this.
Does any one know what it was called

Guessing GAP animation package morph. I used GAP only few times with Gimp 2.6, had problems on 2.8 and abandoned it.
For some reason it also reminds me of "Melt Me" script by Fencepost, but it would require extra work (joining anims and adding the rotation) so I doubt that was used.

Maybe as a starting point gmic plugin

Thanks, that's it !
I didn't even think to look there.

That's actually pretty nice looking, never tried it so far thanks rich.

Oh no! I'm 66 years old now.
Actually, I'm pretty relaxed about it since I discovered the Bowman-Birk inhibitor can prevent cancer.

I am not rejoicing until I see the results of the study in humans. All I found was the studies done on mice, rats, and hamsters. But then, I am sure I did not find all the studies!