Just basic Martingale and research the advantages of this is you almost always dont lose the previous bet. You end up with a huge portfolio and your initial fiat investment increasing over time.
So for example invest $100 in an ICO once it hits an exchange sell for $200 if you cannot forget about it and hold (1 year is good) Then $200 into another ICO keep doubling till you hit once you do start at $100 again