Here is a couple links explaining how to download your own fonts:
Living Laughing and Loving
http://www.livinglaughingandloving.com/2011/10/beautify-your-blog-diy-style-new-series.html
Project Wedding
http://www.projectwedding.com/ideas/118763/how-to-download-free-fonts-off-the-internet
-Holidays (Christmas, Halloween, Valentines)
-Fonts for Birthdays
-Chalk fonts
-Famous Fonts (Disney, Hershey's, Dr. Seuss, and beyond!)
These are all great for different occasions!
The famous fonts are great for creating birthday cards that are based on a theme, or a theme for a classroom, class project or other theme-based parties or events. HERE I found this list of free famous fonts that I show above.
Here are a few more images of my use of free fonts in my own projects!
-J