for this project I altered a lego brick piece to add a football within. as a child I always used to play with legos and build cities, I hope to modify the legos to build up some of the building blocks of what I enjoy. I hope to make a couple of these to highlight some of my interests. I hope to create other bricks representing family, lacrosse, my dog, an eagle to represent patriotism a book to represent schooling. these pieces should be able to fit within each other and add an interesting desk piece.
For my suggestion, I would say to make sure you account for horizontal expansion if you plan to have your pieces fit together, a quick google will show how to compensate for it in the slicer program.
My suggestion is to use different colors for the different pieces that correspond to what is inside of the pieces.