Sue, Would you be interested in my type of bag? See post below. They do need to be heat sealed but work. I cut them in half to make them smaller. Seed should be totally dry since they are airtight when sealed.

hello
are you still looking for envies?
I'm making some paper envies and I can make some extra for you. you could send me some flower seed (no morning glories) in exchange.
let me know
michelle