Cooldown for /skull

Hey been about 12 days, found any reason for this?

Apologies about getting back to this about.. 1.4 months later. Posted it originally when I had started planning I would need to get the skulls. I just find it super annoying that I either have to do /skull several times with a 15 second cooldown between or /skull once and ask a M+ if they could copy it for me if I am going to be using the same skull to decorate several different places. I am having to wait that extra time that I dont see a need for when I could just /skull the amount of times that I need, but instead I have to wait.