Cardboard Boom Box

Was going on a roadtrip in the van yesterday, and thought the girls might want to watch a DVD on the laptop.  Usually they use headphones, but I thought why not make a boom box?!  I had taken my great little Philips shelf-top stereo along on a trip once before, but now it's quit working, unfortunately.  I found a couple of really cheap small plastic speakers that came with my PC in 1996 and I hadn't thrown out (the pack rat in me is feeling quite vindicated!) and stuck them into a cardboard box (using duct tape) with a transformer.  They worked quite well, though the box was a bit bulky for my daughter's small lap.  I think we'll use this at home, too ...