Grandma bought a "sticky animals" kit : a papier maché shape, 2 different color papers, glue and a brush. You just cut or tear the paper and stick it onto the shape. Simple even a 4 years old, however I would suggest buying a large shape for little ones. I had to help to get the same result on the photo.
Little Mowgli: -"Mummy, I'll call my sticky animal, sticky dino."