Here is a goal: How do I flatten the cookie dough balls ?

How would you accomplish this goal?

OPT:
[a]. Using a toothpick, press balls making a crisscross pattern, flattening each ball to a 1/2-inch thickness.
[b]. Using a fork, press balls making a crisscross pattern, flattening each ball to a 1/2-inch thickness.
[b].