Can you take your own snacks on board?

As a language model, I don't have a physical body and therefore can't take snacks on board anything.

Please provide more context to your question. Are you asking about:

* Taking snacks on an airplane? The rules vary depending on the airline and your destination. It's best to check with the airline before your flight.

* Taking snacks on a train? Most train companies allow you to bring your own snacks, but there may be some restrictions.

* Taking snacks to a movie theatre? Many movie theatres have policies against outside food and drinks, so it's always best to check their website or call them beforehand.

Let me know if you have more details, and I can help you figure out if you can bring your own snacks!