At our work we were decomissioning six old HP/Compaq servers to clear up space for new servers and, naturally, each server had a fairly large raid array. Instead of formatting every hard drive (would have taken weeks performing a DoD level wipe) and disposing them all together with the servers, I decided to disassemble the hard drives and recycle them into something neat. With a lot (a lot) of patience, I made this shiny Xmas tree. In total there are around 70 old SCSI hard drives, between 9gb and 18gb in size each. They were nice and chunky, oldschool style. There were quite a few different hard drive models, which is good because they each had different bits which I could use. The Xmas tree is made with parts from hard drives only except for one nut which I had to purchase for $0.39.