Over a decade before a cheeky artist duct taped a banana to a wall, Stefan Sagmeister showed much more artistry with the same medium.Using 10,000 unripe bananas, he spelled out the title “Self-confidence produces fine results”, with the greenest of the bananas.The wall was then left to ripen over the coming days, in which it got dramatically more ripe, dark, and aromatic.The Austrian designer is long known for his rule-breaking, fascinating art, and this project back in 2008 was no different.