I finished my first 2 mods. The first is a new mini Ion Beam. It's a ion-blue beam weapon the same size as the mini beam. It has a rarity of 4.
The second mod is the XR-21 Assassin. It's a regular stealth ship equipped with the new beam weapon so you can immediately give it a try.
Ion Beam:
http://www.wreckcenter.com/ftl/Ion-Beam.ftl
XR-21 Assassin:
http://www.wreckcenter.com/ftl/XR-21-Assassin.ftl
And here's a video of the weapon in action:
https://www.youtube.com/watch?v=LaEXn6loffc