One of the best things about woodlands are the old tree stumps. These make super pots and places for mixing potions. Soups of all descriptions are made in stumps by children across the world.

It's also often an ideal introduction to the processes of woodland decomposition. Because moss, lichen and other plants and fungi grow on stumps, children often use this time during their play to discover and learn about these organisms.

I'm not sure whether it's a blanket rule, but in Sweden I was told that conifer stumps with holes are spruce trees that decay from the inside out.  Pointed stumps are pine trees and these decay from the outside in! Clarification about this is welcomed!