It was funny except for the FSM bit. I don't know how religion (or the making fun of) fits into any of this and the whole flying spaghetti monster is really played out anyway.
That is not something I would want to wear into battle. Looks like you'd inflict more injuries to yourself than the enemy would and it sure doesn't look very durable.
Most of those are REALLY reaching (ooh, look this old movie has a jungle too, Spielberg is a copycat!), and besides it's no secret that Indiana Jones was based on those older movies and serials. It was intentional.
Why do people do stupid things like that? If you like the movie so much buy a T-Shirt for crying out loud. You can always take it off later when you get tired of it and you won't look disgusting when you get older.
It's true it should have a feature to mute the sound, however Windows as had per application volume controls since Vista. Just open the volume control and turn down the sound for your browser.
What's next, birds that can talk?