From the book, I Love to Doodle. SVG code can be inserted into an SVG image then scaled and positioned where desired. Handcoded SVG for simplicity.
This is a completely free image Snail Doodle that you can download, post, and use for any purpose.
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.