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This seems to be a rather obvious tweak, but I really had to think some time until I've found this easy solution. So, if you don't like the flipping element of the game or are unable to properly flip those tokens (my wife needs to practice a lot!), use this as a replacement action:
Select a token you want to play. Roll a die.
Odd number = odd value of the token
Even number = even value of the token
As the tokens are 0/5, 1/4 and 2/3 the result will be always unambiguous.
I created my own custom dice to avoid having to do the coin flips.