if you buy the stuff and send it to me I would make some for you.
1/4'' tube, 6/32 threaded rod and traxxas ends
otherwise I always lose money on it as nobody wants to pay the price it costs to make them, let alone a small profit. It isn't all that cheap really, and does take some time cutting each right, sanding to proper size and then shipping.
Solid rod I only do for myself, the time those take simply isn't worth doing for others.