Find yourself any kind of paper. The more colors that better! I found mine at the 99 Cent Store. Cut the paper in half (this gives you more sheets)
Embelish your paper using stamps. I made my stamps in order to give the stationary a unique touch. (I have a tutorial for stamp making).
You can also use a corner punch or embellisher on your paper to add to the flare.
Here are some samples.
Make matching envelopes. And Viola! Send amazing letters to your friends and family. Or me! Now a days, I do not seem to receive many fun and meaningful letters.