Typically the LBS has to order a blank black spoke, then cut and thread it to size.
TxAventon, that nipple will rattle around until you remove the tube valve and let the nipple fall out of the valve hole.
That is strange and I have never seen it done that way. I'd send Aventon an email and see if it is intentional.I noticed that on my wife's new Level all of the rear spokes are laced from the inside of the hub instead of alternating inside and out. That seems wrong.
I got a reply back from Aventon and they said that it is intentional. They said that lacing the 12 gauge spokes alternately would put too much pressure on the spoke heads.That is strange and I have never seen it done that way. I'd send Aventon an email and see if it is intentional.