u/Brief-Strawberry3691

Hello all! I'm looking for a cup that my 5 and 7 years old can't open, and has a mechanism to drink out of. My kids are destructive. I've been trying teaching them to leave them alone but they continue to open and pour the content out, and/or on someone. I need help....

Edit: we have bad ADHD. We need to have water for practice and at school. I'm not going to have them dehydrated. We drink cups fine at home with no issues