This page shows the different variations of the Stopy dziecka from an Icons8 icon pack. Feel free to resize and recolor the icon, and then download the icon in PNG format for free. Icons are available in PNG and vector.
It is the outline of two footprints. There is a left and a right footprint. Both the left and right foot each have 5 toes. This looks like a souvenir keepsake a parent would make of their childs footprints.