But all of wrong size and shape.
I used a string attached to a dowel and mechanical pencil.
Draw the scroll (spiral) letting the string role up on the 12mm dowel.
Here I draw I spiral using a socket.
Just using a stick and weight to keep it in place.
And tie the pencil to the string.
To big
So I did one smaller
Note that for the “leg“ I used a French curve template.
So I made one smaller.
The inside of the snail is what I use.