I found that investing in bitcoin has outperformed the average post college job. (I conducted my research by comparing 20,000 invested in a college in 2010 vs 20,000 invested into bitcoin in 2010.)
Buying small amounts of many new crypto coins in the hope that some of them goes big is probably possible as well.
I would not risk this though, the failure rate of most new crypto is close to 80% to 90%. Litecoin and Ethereum are the outliers, not the most common cases.
Hence "small", which I took to mean "amount you can afford to lose"
Where 19990 lost their investment due to a forgotten password, a fried HDD or Mtgox. The other 10 however are now chazillionaires.