If you don't want the ships to just "appear", yes you could add some sparkle or something. Also, what if your ship was printed?
Wouldn't have to be slow. Just have 3D printing sparkle-magic move across the hangar and "print" the ship model as it goes. I imagine this would be pretty simple to do, as opposed to modelling and animating an elevator launch system.
It would be acceptable as an appearance for spawning, plus could even be used for spawning balance: Printing could take longer on, say, carriers with limited resources and be quicker on major space stations near your teams supply chain. Might encourage people to think about where they respawn rather than just hitting the "Make Me Live Again Quickly" button and racing back to the fight.
Come to think of it, perhaps the speed carriers print also depends on their distance from the teams resource supplies...