I found a box full of unused Christmas cards that had been sitting at the back of my bookshelf for years. They were a bit ordinary and I had a lot of them in the box, more than I'd use in a year. So what I ended up doing was cutting and folding the smaller ones in the right places to create pop-ups, which I stuck inside the bigger ones. I spent a lot of my spare time making these throughout December, ended up making close to 30 altogether, and the recipients seem to like them, so that makes me happy.