Rocks of any shape and size
A permanent marker
Outline the design you want on your rock with a pencil (so you can use a rubber to fix any mistakes). Once you are happy with your design, Go over your penciled lines with a permanent marker. Now you can go crazy with whatever materials you have for colouring! I used oil pastels and blended the colours into the rock with a sponge.
A really cute project that I had a lot fun making! I’ve put my critters out in the garden, I’m sure you can find some waterproofing spray in craft/hardware shops etc, I’m just taking a chance letting my critters explore outside without their coats.