threaded aluminum posts(also known as Chicago screws, barrel nuts, binding posts, and sex screws) and extensions, at a Lowe's hardware store, that can be modified to work as lacing needles for paracord knot work. Manny used a drill and a bench grinder to shape the tip on the ones he purchased.
I bought a couple of the 2" long sized posts($1.08ea) and the 1"
extensions($.80ea), in case a longer lacing needle is needed. It's a
little bit larger in diameter than the Jumbo Perma-Lok lacing needle that I usually
use with paracord, but still a good size for working on Turk's head knots, weaving/woven paracord projects, and such...
The posts already have internal screw threads, compared with the DIY lacing needle projects requiring you to drill/tap your own threads or do without. The threads allow the needles to grip and hold onto paracord as you work, so to modify the posts you just have to remove the top section of the post and grind/sand it down to a shaped point for use.
I used tin snips to clip off the flat top section(hacksaw also works), a bastard file to take off the sharp edges, and then used my Dremel tool with stone disk and sanding drum attachments to shape the tip.
I smoothed out most of the rough edges with a diamond file, but using a fine grit sandpaper would probably get it polished up smooth if desired. You don't want to leave any rough spots to catch and snag on your paracord when working with the needles.
Did some googling and found an instructable for making these too. More info and links in the Comments section of this blog post... ;)