DIY Hogwarts Acceptance Letter Template from Hello Paper Moon here. This post contains links to Harry Potter like fonts, a printable wax seal and a template of an acceptance letter. It’s actually really clever and here is a really short except for the Uniform Requirements:

First-year students will require: 
1.Three sets of plain work robes (black) 
2.One plain pointed hat (black) for day wear 
3.One pair of protective gloves (dragon hide or similar)