A blob turns into something beautiful

I was lettering in my sketch book when I spilt a blob of ink on the page! Ohhh nooooo! So I tried to blow it dry but it just spread! Like a tree branch! So the next thing I know I'm creating trees! with a bit of colour the dark ugly spot has turned into a tree. They are so fun to draw (not really a drawing) but no 2 trees are the same.