1D Halloween Costume DIY:
Harry's style(s) is a mix of dad clothes and women's accessories, so this will be fun! Acquire a Hawaiian flory button up (dorkier the better) and plain black skinnies, but rip obnoxious holes in the knees. For his infamous hair, let it flow long in the breeze, tied back by a scarf, secured in a bandana fashion. I would also recommend adding an expensive looking watch and some jewelry.