I really needed a retail package box for my invention and was running out of options. It turned out not being as expensive as I thought.
I made a huge effort finding a box to suit my needs. After visiting several manufacturers I met one actually willing to shape and make 70 blank boxes for a very reasonable price. I used the previous chocolate-box as a reference.
To save money I got blank boxes and printed out stickers instead. It worked out nicely and was a lot cheaper than I could have imagined.