Postcards is an utility that lets you roll your own postcards or e-cards and send them easily with Mail.app.
To get started all you need to do is drop an image from your iPhoto library (or from anywhere for that matter) onto the app’s main window.
You can resize and reposition it, add a message in the pane to the right (adjust the font and text size to suit), and then add a stamp to the top of the postcard:
You can add a stamp from the library that comes with the app in the slide-out drawer on the right, or you can double-click on the stamp on the postcard.
You then get the chance to make your own stamp, using the built-in stamp editor:
Even the postmark can be customised.
When the postcard is finished, ⇧-⌘-A opens it up in a new Mail.app message, ready to go.
The developer also provides a zip file of handwriting fonts to add that extra touch of hand-crafted realism.
In an extra nice touch, the app can capture an image from an iSight camera. Since mine is built-in into the top of the screen, I can grab an image of wherever I am and send it.
In minutes you can knock up a postcard to a loved one or a swanky promo for your pet project:
Postcards is shareware (USD 10) and available from the developer’s web site 
. You can try before you buy, but the postcards are watermarked “unlicenced” until you pay.
[Thanks, Anthony!]
Ummm
I thought knocking OUT was for projects
and knocking UP was for…
Well, you know! :)
Tim, how did you do the speech bubble in your George Bush/Hawkwings postcard? I can’t find anything in Postcards that will do this. Or did you use another app (e.g. Comic Life) to make the picture with the speech bubble?
Steve — I guess it depends how much you like your project ;-)
Barney — See an earlier Hawk Wings post.
Excellent. Many thanks.
I will pay for the application when the application relies on my address book directly. I do not like a two step process (write message in Postcard. Open Mail). Include a TO field and a link to my address book, and I will gladly fork over $10.