You all know that feeling...
I remember this! I remember seeing it!! It's a thingummybob by watchcallhim!
They used to sell them in that shop, whatever it was called, the one that's not there now!
And then you have no information you can Google with...
BUT, there's Good News!!
I still have membership of GMB so at least I have somebodies I can ask.
I know I'll kick myself so hard when you tell me....
It's the early onset dementia of diminishing recall.. please be kind (you can gloat a bit if you're inclined to schadenfreude)!