Here's a fun challenge that may give you some creative inspiration...
Incorporate at least 3 things that you might find "up in the air" in your card design.
Check out the inspiration pix at the 365 Cards blog!
Truly Yours Card base
Microsoft Office Clip Art (rocket)
DCWV Immortal Love chipart (moon)
Uniball Signo Pen - White
Gellyroll Pen - Clear Star