
My father is, without a doubt, a computer geek. So, for his birthday this year I made him some prints of technical diagrams from important patents from computer history -- namely the vacuum tube, the transistor, and the integrated circuit. Happily, these documents are in the public domain if the patent is expired (that's the whole point of public disclosure), and the diagrams are pretty easy to find. You could do this for any of your giftee's interests related to inventions (automobiles, motorcycles, tools, cameras, food packaging, watches, airplanes, music equipment, firearms... you could go on and on!). I aged the paper so this would also be really attractive with botanical prints, architecture, or bugs... I am really into bugs lately.