A moving tapestry of Barnabas the Barmy, depicting his foolish attempt to train trolls for the ballet, hangs on the 7th floor of Hogwarts Castle, opposite the entrance to the Room of Requirement.

• 巨怪棒打傻巴拿巴的挂毯，描写了他试图教巨怪跳芭蕾的愚蠢尝试，挂在霍格沃茨城堡的八楼，有求必应室入口的对面。房间的大小，从走廊上来看，就是由走廊一边的窗子，到另一边一个一人高的花瓶那么大。