We had some trouble with the Wii's wired sensor bar when playing on a projection television; even if the wire is long enough, you're left with the problem of having another wire to route around your furniture. Those without high-def projectors may scoff while explaining that this really isn't the sort of problem they would mind having but, nevertheless, we mind.
In the latest installment of DIY-erless -- our ongoing look at do-it-yourself wireless hacks -- we check out DoctaBu's guide for making your own wireless Wii sensor bar. Of course, we know that it's not really a "sensor" bar but a pair of infrared sources that the Wii-mote uses to triangulate the cursor's position. Using a perfboard, some IR LEDs, some wire, and four AA batteries, one can easily create their own projector-friendly Wii sensor bar.