What to do with old leather belts?

I have had the same leather belt that my brother gave me in 2010 or something. I don't have any other belts and won't be buying one in this lifetime since this one is so durable. But if you have other belts, I'd think it wise to donate the leather ones and use the ones that are vegan.
 
I have 4-5 animal product clothing pieces. Some are heirlooms, or trophies from my travels, or have saved my life (maybe literally.) I will wear them until they are useless even tho they might be in extremely bad taste to some vegans.