it cannot mention a box or any of its derivatives

It's a triangle

A big object made of a box and this box is made of other box and other box, other box and a hexagon on the base. Made in heaven

Me

Box iz me.

Not a circle

it's a sphere that's hollow on the inside.

A femboy

6 squares of material, usually cardboard. Take one piece, and glue it to the right of another piece. Glue a bottom piece under both. Now, repeat process again until all 6 sides are perpendicular.

I said wrong answers

NO ITS A SPHERE THATS HOLLOW DAMNIT

Weebs: DID YOU SAY ONE PIECE?!?