Have managed to build (all using wood and laser-cutter): Mantas, Orcas, Tiger Sharks, AX-1-0s, Barracudas.
Rest are my own scratch builds, mostly off Eldar bases: Devilfish, Skyrays, Hammerheads, (all from old Eldar support craft) Tetras, Piranhas, (odd Eldar support weapons) Gun Drones, Heavy Drones, Crisis Drones, Broadside Drones, (from plasticard and staples) Crisis Suits, Broadside Suits (off Ork Dreadnought bases).
Wound up producing a full Battlefleet Gothic force instead of just a single spacecraft for orbital support.
Lots of photos in battle reports on Markconz
websiteSome earlier efforts were in a
ToEG 2013 Colonial Tau Blog