I've sewn little goodie bags before, but always with a velcro closure. Very annoying. I found this tutorial for making old-school envelope-style baggies, much like the sandwich bags of the 70s. The video is very funny. You should check it out. And make some yourself while you're at it! Even if you don't have stash fabric, find some. The Strawberry Shortcake bag above was from a cut up bandanna out of the dress up box.