Bored couple of days, I decided to use some of the balsa I had lying round to make something with it. I was originally thinking about "Geodes which are essentially rock cavities or vugs with internal crystal formations or concentric banding."(wikipedia) They look like a common rock from the outside and not until they are cut in half you can see the contrasting crystal surface inside. I tried to accomplish something similar with the needles and the balsa by pointing everything inwards.
