I have some q.s.
1. When we have ico token, What do we do with them? How to sell them into money?
2. Few campaigns have their own wallet? How to sell them in to money?
These are my answers to your questions.
1. If we have an ICO tokens we could stock them into our wallets so that we can assure the safety of it. We can make them into money just by simply trading them into exchanges/markets where it is listed.
2. Yes! There are really fer ICO bounties which having their own wallet because most of them are using Ethereum Wallets to do so.