Thanks for posting the USB Laptop Keyboard Controller writeup on the PJRC website. I have one correction; The beautiful wood base was made by Warren, not by Frank Adams (aka thedalles77). It should read "In his post to our forum, you can see a beautiful wooden case that Warren made using basic carpentry tools..."
I have also built wood bases for keyboards but I'm not as handy with a chisel as Warren so I resorted to using multiple sheets of thin plywood that were cut with a jigsaw and glued together.