Ideas for seeds to put in wedding invitations...

Strepsy

I think Nasturtiums would be good. The seeds are like small dried peas from what I remember so they're a good size and also they're completely edible. The seeds can be used like capers. The flowers and leaves taste like watercress and can be used in salads etc. They are really easy to grow and actually grow best in semi-neglected conditions so they would suit anyone who wants to just chuck them in the soil and leave them to those who would care for them and use them to eat too. And they look pretty at the same time.