I got what I thought was a very cute piece of direct mail through the door the other day.
A new Indian restaurant around the corner was flyering all of the local houses with menus. The cute bit (and what made me open it and look at it) was that someone had taken the time to stick the menu in a plain DL envelope and write "Hi!" on the front in biro.
Obviously a large number of hours at Bluefrog get spent on cracking the problem of making sure the envelope gets opened, so I really liked this; Different enough to indeed get opened, not psuedo-personalized enough that I felt hoodwinked when I did open it, cheap enough to be endearing. If I'm honest, I think it probably got my attention because I liked the enthusiasm of the exclamation mark and wanted to know who was so pleased to be saying hello (forever the street fundraiser by heart) - and of course, lest we forget, the powerful tool that actual handwriting is in the 21st century.
There's an Aesop's Fable-type message in there no doubt, about a little bit more thinking and time getting you good things. Regardless, we have a new takeaway at our house now.