The secret is: "arrow" antennas are made from arrows. Yes, archery arrows.
The hardware that attaches the arrows to the boom is (again) arrow hardware,
that's used for mounting certain types of arrowheads to the arrow shafts.

--

"Doug McLaren" wrote in message
...
I'm looking to make a 2m/70cm yagi antenna for working satellites.
The plans are out there, and it seems quite simple. (Or I could pay
$73 to Arrow Antenna, but I'll give it a shot myself first.)