Best brush or brush holder adapter for painters pole

Hey everyone,

I am in the process of trying to figure out what would be the best brush or brush adapter to purchase for my gym. It is primarily a bouldering gym and I would prefer to use a boards hair brush to clean my holds.

The best three options I have found are:

Duct tape.

If you have to brush the holds, you didn't make the send.

Bouldering comps look a lot like curling comps.

There go my three strikes for the day, I'm out!

I failed to mention that I don't want it to look tacky, especially not using tape to hold a brush to the pole