Tiny Prints has lots of different Father's Day card templates that you can personalize by adding your own photos.
Most cost $3.99. But if you use the code FDAY99, you'll pay just $.99. Add $.45 (the price of a stamp) and they'll even send the card for you.
I took advantage of a similar offer for Mother's Day and my mother-in-law thought the card was great.
This offer ends June 7, 2011.