My first DIY were my STDs. FI and I both work for the airlines, so the ticket style seemed appropriate. Absolutely *no* more airplanes in our wedding!
I made the ticket jacket from black cardstock, and printed the 'tickets' on Opal Stardream paper at Staples. (Do anyone else's .pdf files shrink about a quarter inch when you use their EasyPrint program? Weird. Not going to be acceptable for the invitations.) I ordered the 'passport' stamp online and used silver ink, which still smeared quite a bit. =(
I have terrible handwriting, so I used my printer to print on the envelopes and traced with a silver pen. FI's grandma commented that I have pretty handwriting! Ha!
Obviously, our colors are black, red, silver, and white.