This is what I whipped up
Wood from garage, wire letter tray is meant to be stackable so the wires work quite nicely for keeping my laptop in place.
Whats odd is people always complain about heat in windows, in windows my fans kick in at 80 on the dot, on mac it cooks at 80-85 for a bit then it turns em up. Though right now where im sitting with it on my lap its fine at 50C with lowish cpu usage, streaming music from last.fm and such. So its honestly not that bad.