Little black round disc thing in the Challenge grab bags

I'm probably going to embarrass myself here...in our $2000 Challenge grab bags, there's a little black round disc thing with a notch - anyone know what this is for?  It appears to be made out of rubber, and has the tire rack logo on it.

I'm at a loss.  Like maybe it's a coaster, but then the notch confuses me.  Any ideas or anyone know for sure?

I assumed it was to go in the bottom of a car's cup holder and the notch was to get it back out to clean it.

Open jars of mayonnaise?

In reply to wae :

Hmm okay, I can see that.

In reply to Datsun240ZGuy :

Yah I know what you are referring to there, but those things are usually pretty thin, and quite large in diameter. This thing is about the diameter of a soda can and like a 1/4" thick.

wae said:

I assumed it was to go in the bottom of a car's cup holder and the notch was to get it back out to clean it.

Yep. Katie, Nicole and I had some discussion about them when we were stuffing the goodie bags, because I, also, had zero clue 🤷🏼‍♀️

Margie

So it's the latest "what is this?" thread, IRL edition

Motorcycle kick stand pad? Keeps the kickstand from sinking into soft ground. Maybe?

In reply to Scott M :

Maybe a picture would help. 

I can do a picture; I placed the pen that came in the goodie bag for a size reference:

wae said:

I assumed it was to go in the bottom of a car's cup holder and the notch was to get it back out to clean it.

This is exactly what it is. 

We have a prize closet at work with a bunch of goofy gifts to pass out at trade shows.

One sales guy bought reading glasses (cheaters) to give away.  I thought it was lame but he said it was a big hit.

So, you have to clean a cup holder AND a coaster?