A set of covers and Identification for your keys.
Print them in different colours, or use the ones with Letters or Icons to identify what all your keys do!
Print them in Bright fluorescent colours if you always loose your keys!
Print them in pairs or at least more than one at a time.
The Sketchup file is here so please make a derivative with your own Text, icon or Logo's.
Yes, they do print vertically, no support required.
More on My Blog - http://richrap.blogspot.co.uk/2012/06/key-skins-30doc-day-7.html