Accurate Armour used to do an etched fret of star antennae, I'm pretty sure it's still available.
There's a link on the main page.
AA's star antennae have five points, and to my knowledge they usually had six. They're also in the shape of a pentangle, so you can't really pretend one of the points broke off (I know I've seen a star antenna with four points in one of the photos in Thomas Anderson's Concord title on the Panther, though, but it looks like two of the points may have broken off).
What I did was buy the Aber PE set for DML's late "Command" Hetzer... then waited about a year until I actually saw one on sale and bought it too.
dgawle "at" telus.net