My Retrogaming store is on PriceCharting.com
You can find Nintendo NES and Atari 2600 items there.
https://www.pricecharting.com/offers?seller=xkrlmiues5x35d4tnmm62bdzmi
This is the link to my eBay store where I list any Commodore 64 items I have for sale:
My Ebay Store