So how do you go about displaying your belts that you have earned?
I have always thought I should not show them or display them, but my instructor said it would be okay if I did it in a tactful and respectful way. There are certain belt displays that you can use to show your belts that are classy and respectful.
One place I thought had some nice ones (and my instructor agreed) is http://www.karatebeltholders.com/.
The belts were shown in a way that did not look like they were being shown off so it had a respectful feel to them. See the belt video here.
They have a bunch of different ones but I think I like the cheap $20 version the best.