This is a connector designed to work with standard craft sticks.
The zip file includes two models, one with cruciform bores and one with straight bores.
Failing a Save Against Platonic Love: http://zheng3.com/?p=1955
No assembly necessary. Just print a few and connect them with craft sticks.
The cruciform bores overhang quite a bit, so they can get a little sloppy printing on a Replicator. A powder printer shouldn't have any trouble with them though.
Seej patient zero. Barbie Armor Designer, artist, worst programmer ever. Mostly illiterate, but has minimal competence in spoken Mandarin. Not real clear on Ohm's law.