Stuck for the perfect present to give to the sys admin in your life? New York-based Dynomighty may have the answer: the dot-matrix wallet. It's a US-style three-panel cash stash cunningly contrived to look like a section of printout, complete with sprocket holes, from the days before lasers. And to add a further geek-friendly touch, the numbers printed on the front are the first 3,000 digits of pi. All this for $25 from Dynomighty's website. ®

Thanks to Reg Hardware reader Simon for the tip