20 feet container w/ base plate for HO model train - remix

This is a quick remix of PHILDC's container: I added a bottom base plate.
That way you could use it as a surprise gift box: just print it until one of the last layers before the top, pause the print, drop in some small item (key, money, usb thumb drive, etc.) and then continue to print the rest of the container till the top has been closed up.

That way you'd end up with a sealed gift "container" the recipient would have to crush in order to get to its contents!

Let me know what you've used it for, if you made one.