We made these the other night in Production at PC. A telescoping box with a sexy lip used to guide the top lid into place. That might have sounded dirty and I'm not sorry if it did.
To make this box, follow the directions for a regular telescoping box but made TWO lids. One to glue to the bottom of the base and one to act as the actual lid. They'll meet perfectly without overlapping. And your box is that much stronger and sexier.