This could make quite a fun experiment to see if it works. Crowdsource an investment of something like $10,000 and let it run for a year. At the end, donate all proceeds to charity.
Wouldn't have been that uncommon to see someone testing this out with real money, see some early successes and start upping the ante, only to have the Nordstrom event lose them a substantial sum.
Unless you consider giving money to the counter party on your losing trades as well as the brokerage to which you pay commissions to be charitable contributions, you would be better off just giving the 10k straight to a good cause.