I saw a picture of this DIY somewhere on the internet (I'm sorry I can't remember what site I found it on!) and it's a great way to pimp up an old belt! I'm a big fan of recycling, and I love that I be excited about wearing something old I haven't worn for ages.
All you need for this easy DIY is cotton thread, an old belt, and some glue to attach the thread at the beginning and the end.
Start by making a double knot with the thread, then carefully twist the thread around the belt (leave the ends of the thread on the backside, so when you twist the thread it covers everything). You can do the whole belt in one colour or change like i did.