I own org.cg but want to sell. Renewal is due (225 euros). You could sell or give away subdomains to people, so they could register something like 'cats.org.cg'. CG is Republic of Congo (Congo-Brazzaville for the older ones of you). This is super rare - there's only a few domains like this on any TLD as most are reserved. The only other one I can think of is co.nr and it's made a great business out of this. Open to offers.