While searching around online, I came across a 
website for a Honolulu branch of Heiko Inc.  
Though there isn't much in the way of product 
pictures on the site, I'm assuming from the name 
that this is the company that makes those bags 
with the blue writing on the sticky flap.  The 
site has a list of the different bags they offer, 
but no prices, and the ordering section 
says 'under construction.'  There is an email 
address and a phone number on the page, so if 
you've been looking for these bags, here's the 
place to try.  I'd contact them myself, but I 
just ordered some bags and won't be needing any 
more for a while.  The website address is:

http:/
/www.shimojima.co.jp/heikoinc/

http://www.heikoin
c.com/ also works

Pasiphae