HBJ - I have some green tomatillo seeds I can give you if you'd like. They put up BOUNTIFUL yields in my garden last year - kinda took over one of my beds actually. Don't have more than maybe 15 or 20 left, but I'd gladly split what I got with you free of charge. PM me if you're interested.
I have some seeds inbound as I type this. should be here next week. Let me know if you want a few seeds. No charge of course. I have a couple varieties. I bought from reimierseeds.com
I could send you some ground cherry seed. They are sweet and delicious fresh or sauteed briefly with vegetables. However, they are less than an inch in diameter(but very productive).