Hang on to your britches...
My good friend and occasional training partner Pete Sarna invented, designed, created and manufactured the Original Bicep Board (that's the actual name).
I have a very early prototype. Used it many times as did my training partners.
Give it a try. If you like it- beautiful. If you don't like it- that's cool too.
If anyone here actually wants one and will really give it a try... Shoot me a PM. I'll take care of it.
Tom