The first thing I learned as a child was that ‘if you can make it, don’t buy it’. At the age of 8 I built an entire computer (monitor, keyboard and mouse) completely out of cardboard.
Success. My parents no longer had to buy one.
Of course, it didn’t actually ‘work’, but that wasn’t the point. I’d made something. I’d built a computer. I never had to buy anything ever again.
Just maybe more cardboard.