<p>A tube is a hollow cylinder.</p>
<p>....but seriously, people who are admitted EA to MIT get a cardboard tube in the mail filled with confetti and some other goodies (I'm pretty sure you get an MIT poster, but I can't remember the other things).</p>
<p>usually there's a poster (customized for your graduating class and only given to EA admits, I believe), your real acceptance letter, a gift certificate to the COOP, etc.</p>
<p>wow...why do I know this and yet I don't even have a tube of my own.</p>
<p>there will need to be some serious mental detox if I'm rejected. is it possible to hire that guy from Men In Black?</p>