C Ronaldo
his hair is his most valued item
The most expensive item in Runescape is a Christmas Cracker. I would say the price of one of these would be around 8-10b. Sorry for not an exact price but I don't know the exact figure :P
Currently, at over 2,000,000,000 coins, is the White Partyhat.
Blue partyhat costing 2100M
There is only one, and that is in Washington, in the Smithsonian museum collection.
Your Mom... just jks... I personally think frost dragon bones.
the most expensive: blue partyhat the most useful combat weapon: corrupt dragon scimitar
climate like cold or hot . or with pollution. or by killing them
enchant onyx, you can enchant an onyx necklace into an amulet of fury
Well, that is totally dependent on what private server you are using. But in most, you simply edit the "health" code/access # for that item.
They will most likely be the similar prices they are now, most items will crash though, not rise.