Redbubble has added postcards to the range of formats in which you can buy images, including mine. (An example of one of mine above.) You can peruse the possibilities here.

1. 
   Bill 2010 03 20 at 4:20:56 pm

   Very nice image, what cactus is this?

   Bill

2. 
   Chris Clarke 2010 03 20 at 4:33:00 pm

   That would be a saguaro, in the hills west of Tucson.

3. 
   Helen 2010 03 20 at 5:56:32 pm

   Definitely will buy some of these. The one above will work well for sending back to family while I’m having a weekend away. “If I come home and find you haven’t done X which I asked you nicely to do you’ll find THIS stuffed up your bottom.”