Here are some shots of some Back2Base-IX fight stands in action.  The ships used are from GW's Epic range and are solid metal.  As you can see one of the ships is quite large being a Space Marine Thunderhawk Gunship.  The ships could have easily been spaceships from any of the various manufactures.  All ships were held pretty tight and could easily be moved during game play and turned upside down without losing the magnetic connection.  The system works really well and is a perfect solution for any gamer requiring flight stands.  As a side note, I didn't remove the protective paper on the bottom of the bases yet, so that is why they look light brown.

 

There is a fantastic company out there called Back2Base-iX that makes magnetic flight stands.  The stands are made out of durable acrylic.  The stands work using magnets to attach planes/spaceships/grav tanks or whatever.  You get 4 stands for $10.95.  What is great about these stands is you can use them for multiple roles.  Since they use magnets all you have to do use equip your spaceships/airplanes/gav vehicles with magnets and your ready to go.  This means you probably only need 1 or 2 packs of stands for all your flight stand requirements.