How can I make a player look a certain way?

To expand on the title, for example, make a player look like a rock, make them look like a plane, etc. I know how to use humanoid description but im not sure where to start with this. if I could have some help on this, that would be great.

I have an idea. Create a duplicate of the person, modify it to make it look like you would want. Size it down and put it inside the person. Then, use a a script. The idea is using the script you increase the scale for certain parts in the shapes person so that it looks like it is growing out of the person.

Here’s some code I thought up from my head, it might not work but you can fix it easily.

ShapedPerson = workspace.shapedperson

ShapedPerson.Size = Vector3.new(5,5,6) -- Change size to whatever you want so it scales out of the original person.

Hope this helps. Merry Christmas! :)