This sounds like "What sort of games can I play to provide alcohol to minors while pretending I'm not doing so."

It is legal to throw away your alcoholic beverages, open or unopened. It is not legal to provide alcohol to minors. If you intend to try to convince the police that you were throwing away full containers of alcohol, and that minors somehow happened across your discarded booze and took it from your trash, you should anticipate that the police won't believe you. If there is a chance that minors will take your 'garbage', you can empty your cans and bottles before you discard or (better) recycle the empties.