I recently made a small wood box out of maple, with grey felt on the inside. The locking mechanism works great, and the box has served it's purpose well so far. My old case had rips in it, so I made this to hold my pencils and calculator for school.
Step 1: Video
Link if embedded video does not work: https://www.youtube.com/watch?v=PefGVnbtFZQ
(Opens video in another tab)