I agree, as an athlete, Manny can promote a project to others rather than making coins in his own name. A coin created should be based on projects and products not from a famous celebrity's name or figure.
Perhaps the communities of athletes and famous people need to agitate them to start using Bitcoin? This will be the best advertisement for Bitcoin and all cryptocurrencies, increase the number of Bitcoin users and make it much more popular than today. But such stocks must be massive otherwise we wont get a big result.