Antenna Holder
See V2 here as its a much better design
This is a universal antenna holder. It was designed specifically with RC users in mind. The holes for the tubes are sized for 3.2mm antenna tube commonly used in the RC hobby.
Mounting holes are for M3 bolts. Antennas feed thew the center hole which is smoothed.
Antennas holes are 90 degrees apart and the whole unit can be mounted in a ton of ways.