i got the mount at about 200 chocolates. I also had 2 pets in that time so i have 4 pets sitting on one character that got the pet already...If those ears were eligible for transmog I'd get me some of those but meh.
I almost expected it to drop from the extra 100 eggs that I collected because I also wanted the bunny ears in all colours *blushes* but thankfully, it didn't drop. I'd have facepalmed so hard if it had.