Six Flags Refillable Cups

I bought these cups to use at Six Flags on our trip to Maryland. At the park, the minimum cost for 1 cup is $20 plus tax and can go up to $34 plus tax per cup. It just depends on the type of cup you get. At the park, there was a $1.99 charge for refills but I was able to get the refills for free on these cups since they are different. One of the cups has a crack but it does not affect on holding the drink since it is insulated. Price is for both cups.