as long as we're showing our diy cups, here's some i'm working on for a set of old joe grado drivers model d40 if i'm not mistaken that devouring is giving me out of the kindness of his grado heart. Each of these is a little different overall mass than each other. All in limba.
I call this one the Excelsior XB1000 MKII
This one is called coltrane stardust
here's michael schenker love to love circa 1978
and this set I simply refer to as, the disgruntled carpenter-2013 headfi edition
btw, I agree, stain has no affect on sound because it doesn't change the wood's properties, but stain is not 'finish'. Maybe that was the confusion. Finish changes the wood's properties without exception. Bang two raw wood cups together and then do it with the same finished cups. Totally different sounds will be heard.