He doesn't really look like he wants you to have a nice day, but the sentiment is there.
I'd prefer to write a note on a real leaf with a sharp stick, but that's just me.
Available from: Sharif http://www.etsy.com/listing/39809663/i-heart-you-24x7
Do your documents love you or love you not?
Via: Craft http://blog.craftzine.com/archive/2010/09/invadersletterpressnotecards.html