Can a custom item be absolutely anithing?Can I for example have something that cant be put on me as PR equipment , like some rock from some planet(it means i send just a 100*100 picture of some rock) or something else?Or is their only available PR Custom equipment that can be worn?
Yes, it can be anything within reason, except for items that actually exist in game. You could create a rock for yourself, but you could not create royal armor for yourself (even though it would not have any stats).