All of a sudden more than half of my family needed Dementor Cloaks – it might have something to do with them reading the 6th Harry Potter book! I made these very easy cloaks using some cheap black velour
I cut two rectangles – one for the hood and one for the cloak. I folded the hood in two and sewed together the top of it. I pleated the cloak and sewed it to the cloak, and finally I sewed to ribbons to fasten the cloak with. 
Now our house is filled with very scary Dementors! Happy Halloween!