Darice has various size bags. Closest to what you want is 1.5 by 1.5. They are listed in the jewelry section as Plastic Bags for Jewelry Storage. You might possibly find some at a craft store like Hobby Lobby or Michaels or Jo-Ann's and they might not be in the jewelry department.

1x1 or 1x2 is good for seeds... 20 or so seeds takes up only about a centimeter squared so even 1x1" is fine lol.

very cheap in bulk on ebay..

http://www.ebay.com/itm/1000pc-1-x-1-2-Mil-Apple-Brand-Clear-Plastic-Zip-Bag-Ziplock-Bag-Reclosable-/141853938080?hash=item21072751a0:g:BwEAAOSwn51UZPSp

http://www.ebay.com/itm/PLASTIC-BAG-1-X-1-Zip-Seal-1000-bags-en220-/172033683478?hash=item280e01b016:g:WBsAAOSwbdpWV0iE

I bought this size (1" x 1.5") from an Oriental dollar-store booth in a flea market. I regret using them in recent swaps since they must be opened with tweezers, but I like them for my own use. I hope gardeners who received seeds from me will forgive me!

Anyways, let me know if you still can't find this size and I will try to find some more packages here to send you.

Susie