This is a tree with its leaves and branches blown in the wind.
Numbers 1-7: various types of trees!
Of course, there're tons of ways to modify this!
Every time you click, a new tree is drawn.
Make the leaves more/less transparent: -,=
Make the branches more/less wiggly: q,a
Fatter/thinner branches: e,d
More/less leaves: r,f
Bigger/smaller leaves: t,g
Reset all: z
Change leaves to black: c
Toggle leaves: l
Show veins (really slow): n