The most impressive thing we've built is probably our bed, which was hacked together from two MALM beds and two LACK wall shelves. The project that has taken the most effort is no doubt the SunPorch, of which no photos exist yet because it's not done and I never got around to taking in-progress pictures. I've also mounted satellite dishes and drilled through walls and ceilings to run cable; rewired and installed various light fixtures and bathroom fans; and of course the Frankensteined mess that is my home network / media stack.