-Mystic Aquarium in Connecticut has Free General admission for up to 4 people if any one of them receives SNAP / EBT (Food Stamps) benefits.  RI and CT residents only.
They also hve free General admission for Police, Fire, EMT, workers from R.I , CT. .and Mass. $10 discount for their family members.
And also Free General admission for Active or Retired Military Personnel. $10 discount for their family members
-thanks Tex