Ok, it's advertising but ... it's Marisa Miller retro-style pinups.

Send a postcard online - select your picture, type in your message, submit.  [edit: It's an 'e-postcard.'  They'll send you a link to have it forwarded to desired recipient's email address or social-networking site.]  You don't even have to find a Harley-Davidson dealership: http://freecountry.harley-davidson.com/thankyou/landing.php 

They also have downloadable wallpapers.  For US Active Military and Veterans they have a drawing for a Harley-Davidson and trip for 4 to UFC 108 in LV (contest ends Dec 13?)

If you live near a dealership they have postcards and posters available for everyone.  For US Active Military and Veterans they have 2010 calendars.  Dealer locator at above link.