Here two pictures witch make it a little bit clear.
24 dodec with less support material.jpg [ 168.78 KiB | Viewed 540 times ]
24 dodec with support material.jpg [ 300.16 KiB | Viewed 540 times ]
It is the same piece of a 24-dodec.
The first picture shows an oriantation I choose where the printer needs only some support material outside the pieces.
In the second one the printer needs more support material than ABS platic.
In the same way you can place a hollow cube on one corner an can start the print. But the shake of the printer will stop a positiv result But with 3 small sticks outside you can fixe this problem.
Clearly, there will exit boxes and it is much easier to split them in two parts and glue them together.
The other question: this pieces above are very hard to demage. Children can stand on them without destroying.
But sticks thinner than matches you can break in two parts with only 2 fingers.
There exists HP printesr for only one color (ivory) in lesss then a half price.