I'm playing minecraft on an Xbox 360 with four people but only one person has gotten this mysterious cape. It was the same the next day we played on the same person and we haven't changed any settings or anything to get something like this. It changed with whatever the player is holding. 
Where did this cape come from?
Ashley Eggleston 27.05.2015
They probably got it from minecon. I'm not sure what it is called. But captian sparklez ( youtuber ) he plays mincraft 24/7 and he got his at mine con. If you go they give you a code and you get a cape
Savannah 28.05.2015