Here’s a quick DIY Valentine generator. Just type in the words or phrases that you want to appear at random within the heart shape, separated by commas, press ‘enter,’ and the online program will do the rest. You can change the colors by using the RGB sliders. The shortest words appear as the largest. Typing phrases seems to work well.
The gallery has some examples. This would also work for an anniversary greeting or other ‘heartfelt’ message. You’ll have to take a screen shot to save it. Instructions are on the site.