Here is a lovely collection of free templates I’ve found online, use them to collect and organize your seeds and to give those you’ve harvested from your garden as gifts. These envelopes are also popular to use as wedding and baby shower favors (just print & fill with treats). The templates are pretty much cut & glue versions but there is an origami tutorial listed too, also note that a few of the pages listed below offer more than one design (I’ve noted those in the descriptions).

Bonus