Create handmade cards for birthdays, anniversaries, engagements, christenings, and other occasions too. You can find blank cards and envelopes at craft stores, and then you can use calligraphy and watercolors or tempera paint to create fun, individualized images. Or design your card on a computer and print it on card stock. Your unique cards will carry messages of caring, thoughtfulness, and, of course, your wishes for abundant happiness.