Hello Steve:
I do not know if you are still looking for a solution here.

I had the same need with a client recently, in that they print a label for every single line item from their daily Order Entry Invoices. (They pack each Item separately in a box/container, and place the label on the box.)

Because of additional requirements, we are using the Adagio ODBC and linking to the relevant data tables in a MS-Access database. It is working nicely. The program allows them to select a Date Range of Invoices (or Orders), and we generate the labels as a report in Access.

Give me a call if you want to discuss further.