Odd size shoes

Hi 👋 

This is my first post.  I have odd size feet UK L8 UK R 5.5/6. I have to buy two pairs of shoes and have been storing the unused shoes for a while. 

It's very expensive and depressing when it comes to buying shoes and I am hoping that the spares would be of use to someone for a reasonable price. Does anyone know of any forums for selling odd sized shoes?

I've tried Facebook selling sites and was pretty much laughed at, some thought it a joke! Not much luck on ebay either.

Thanks in advance.