A Bacta Tank

The Bacta Tank is a unique reward acquired by doing Silvarra's Village Quest in Phase Four of the Village. You had to heal 100 other players during the Sith attacks (there were raids once every 2 hours), you could only get credit for a heal once per person, and you had to be grouped with them. However, to get credit, the player you were healing had to be in combat with a Sith Outlaw/Pirate.

With the removal of the Dathomir Force Sensitive Village, this tradeable item is no longer obtainable unless you buy it from another player. It is nowadays considered as a rare item prized by collectors.