Yes!

I added a nostr one to my car lol

Would look better if stenciled and painted it up nice.

It's a blank canvas... Do what you want it with it.

Do it

Could commission a local artist or wrap that sucker too

why is this a question ❓

Yes, but I would be cautious of making it super "loud". Doing some sort of fully wrapped thing, or tons of ₿ bumper stickers, will only attract the idiots.

I once had a "BITCOIN" license plate on my car. (See https://tags.glencooper.com). I stopped using the BITCOIN plate because I had idiots running up to the car when I was stopped at a red light. They would always be the mad type, being all angry at me, shouting things like, "I lost my life's savings on Bitcoin when it crashed!". It happened multiple times. As if I had something to do with their stupidity. That was when the price of 1 BTC was under $500.

Imagine how many more idiots there are now that would say they've lost all of their savings when the price of bitcoin has "crashed" down to where we are now, around $61,312.