This is a round box which works fine without the lid cap, but I included the cap in case someone wanted to customize it. For example, I have made one with a cad and one with a TARDIS on top. (I will get pics uploaded tomorrow). I haven't included any method to attach the top yet (maybe a screw system or something soon) so you will have to glue it to use it.
Box_With_Top.stl | 4.4MB |