As he was saying goodbye, Derga gave the president a pen, a cheap roller ball he had used to write letter to his son in Iraq.

NPR: Behind Bush's Veto: A Father's Loss, a Humble Pen

If you give up on tablet writing, you can replace the tip to convert the pen to an old-fashioned roller ball.

WSJ: Putting Pen to Tablet: Using a Stylus With an iPad or iPhone