If wanting a low stakes cash-value tournament set, go with one of the following:
.25, 1, 5, 25
or
.05, .25 1, 5
For a $50 buy-in = 100 starting big blind tournament, the initial blind level would be .25/.50 with an 12/12/7 = T50 starting stack (using .25/1/5 starting chips with 5 and 25 denom...