download the labels here
I had mine printed with a laser printer on standard paper. I cut mine out with scissors (using an x-acto blade to cut out a few center pieces) Then I ran mine through my Xyron sticker maker. Alternatively you could print them on sticker paper, or use regular paper and a glue stick to attach them to your envelopes.
Then write in your address, I like to use micron pens since they have such a great variety of tip size. You could also use a program like Photoshop to fill in the addresses before printing.
**For personal use only. Personal use means non-commercial use of the labels/images including copies and print outs for yourself, your personal crafts/scrapbooking and to give to friends. The labels/images may not be used in any way whatsoever in which you charge money, collect fees, or receive any form of remuneration.***