Since my last post, I found out I am pregnant. Making bentos became low priority due to constantly feeling sick. Hopefully, since I'm in my second trimestor and food is looking appetizing again, I will start my bento making with renewed interest.
In the meantime, I found this link on a bento forum I frequent. The costs look really good and I know several of the items they are selling because I ordered them from another company that no longer takes online orders.
The website is All Things For Sale.