Stickers for Stephanie
Any office supply store will have them. You could use any mailing labels (they also come in clear) but these are versatile because you cut them to whatever size you want and the stickers on the sheet don't all have to be the same.
Cool way to promote your zine. You could staple or just slip them in, customize them for theme issues, etc. (Probably couldn't do these on a photocopier, but a laser printer works beautifully. I can bring you some sample sheets if you wanna try it out.)
If ya wanna wheat-paste the old-fashioned way (tho it might be considered vandalism depending on where you do it!), here's a recipe.