I have a desk already. I want to have something I can put on it to turn it into a standing desk and start standing a few hours a day. I'm wondering if people have any DIY examples to share. Again, I'm looking for something I can put on my desk I have right now. I've thought about the Ikea Lack side table. It's not a bad option, although I want something about a half foot taller. Any good ideas to share?