In the Harry Potter universe, Harry receives a Nimbus 2000 racing broom from Professor McGonagall when he joins the Gryffindor Quidditch team. This is how I made mine for a Harry Potter Halloween party.
I've entered this in for the Halloween Props competition, feel free to cast a vote if you like this!
Step 1: Always reference your work
First step is to get reference pictures of the broom so you know what to aim for. I used this replica from Cinereplicas as the basis for my build. I imported the side view into a drawing programme and scaled it to the right size for my height. This allows me to work out the ratio of broom to stick and the right diameters. Close up photos also allow me to see what various parts are made of and how things go together. Notice how the back half is more curved like a tree branch and the front end has a sharper curve like it had been shaped into a broomstick.