I don't know about that wood one. It screams "I don't belong here!" since it doesn't match anything else in the car.
I've had the silicone one from the first page of this thread for months and no one has ever realized it wasn't a part of the car until I mentioned it. Probably because there are more interesting things for them to look at in the car...unless something is drawing your attention to it.
The silicone one is super easy to take out and clean.