Comments: I think this is a good design as it is safe for young kids to be close to, without sacrificing its power. From http://www.directtrafficmedia.co.uk/News/Images/652843851392/Dyson_Balloon_Viral_Wins_Support_for_Bladeless_Fan_xlarge.jpg
This ashtray is good as it reminds the smoker that he is poisoning his lungs and the ash is collecting in the tray and his lungs. From http://www.treehugger.com/lung-shaped-ashtray.jpg
This is a bad design as no one is used to this split keyboard and can be irritating to use.
This is a bad design as it contains sexually explicit material and is bad for children.