Do you know what this is?

Yess I do! It keeps the ball inside old PC mices.

Something to throw at your dumb employees.

LOL Haven't seen one of those in ages.

Anti clockwise cup holder

Bottom of a mouse?

Mouse nut holder

If it was in the conference room it's been recycled into a coffee cup coaster... {Grins}

Who uses a non optical mouse nowadays?

I think it's used to do marijuanas 😳

Looks like a filter cover

A hearing loop?

A donut. Do I win? 😃

I’m clueless

wmd

yep