As semi-promised, a quick video tutorial of me turning an old carton of oat milk into a gift box of sorts. I used a number of these last year!
You could also use the finished product as part of a self-made advent calendar. As I mentioned in .gifs > gifts, I also have a smaller one (from a carton of coconut water) upcycled on my desk to hold my pens, etc. The process is exactly the same, you simply fold the edges over all around one to two times for stability.
Pro tip: Don’t cut your nails right before you do this. You need a little edge!
Jane Talks to a Wall 