When you bruise or break the skin of a banana peel, it releases chemicals that oxidize and turn brown. By using precision tools like a sewing needle, you can make small dots and scratches that are fine enough to draw a picture.
Read More: http://makezine.com/projects/banana-oxidation-art/
Published 2015-03-04 · Watch on YouTube ↗ Availability and playback restrictions are controlled by the original channel.