This is something I did for fun, The sprite will stamp itself around its current position using math to make an outline effect like what you would see on a sticker. The script is free to use :)
I was mostly inspired and motivated by a project for making a script like this. I didn't make most of the sprites, they were used from the scratch library ----- On 1/18/2021, this project has been featured on the front page of scratch. This was a goal that I was chasing for 4 years now, It's finally over. Thank you @Twin138956Scratch for proposing this project and THANK YOU, EVERYONE!