Ready to build your own Sonic Screwdriver? If there really was a Haynes Manual for it, you would be able to do it in your own backyard or workshop. Maybe. If you knew enough about all the wibbly-wobbly, timey-wimey, glowy-flowy, screwdriver-screwdriver stuff inside. Unfortunately, though, this is just a shirt; but a pretty nice one, you have to admit!