Commemorative African coins

Hello,

Can anybody tell me where I can buy these coins? I know that there are many made by countries such as Congo (Democratic Republic), Liberia and Somalia. Is there a place where I can buy these directly from whoever makes them or can I only get them on eBay?

Regards

I know the British Royal Mint make a lot of these

Thanks for this, I didn't know who made them. I just checked the Royal Mint site, but there is no spot to purchase these coins. If you know where to purchase them besides ebay, let me know.