A big screen TV with videos of PVP action in the warzones...real live action would be cool but a repeating loop video would be ok if it is a long video.
A video screen with your stats for that toon (PVP, Achievements, alignment, ...)
Portraits of your companions and something signifying the affection level.
Companions in Kolto Tanks
Defeated bosses in kolto tanks
Legacy toons in Kolto Tanks
A shooting range