DIY "Suitcase Leslie", from a few years ago:
Great! 
now I have to build one. damn you!
You can get rotors off of eBay which have been salvaged from old home console organs, which appears to be what Doug did. Making the rotor yourself is just too difficult (I tried - it wasn't happening).
Gabriel
There's a local guy who refurbishes organs and sells them on CL. He gets these rotors out of home console organs and sells them too. He also offers to build them into a cabinet for guitar, but it's pretty lo-fi and expensive. I got this rotor/speaker from him for $40. Speaker baffle, back and 3 of the sides were existing. I made a 4th side (bottom) and front out of plywood, drilled holes for the ports and added veneer and trim. Got the control box, the two switches and cable surplus. This is an 8" speaker and I don't know what the wattage rating on it is but I use a 10W amp and it works pretty well. A year or so ago he had a 40W 10" speaker unit available and I was tempted but didn't have time to get into it.
