G'day Surgana.
#183 is awesome!
Can I see this one changed slightly... I'll do my best to describe it here.
Keep the silver tetrahedron in place. Then bring out another tetrahedron under it like you have so that we end up with an 8 pointed star. Kind of like what you've done there, just remove the square.
Once we have the 8 pointed star, enclose it in a circle lightly so that we end up with what would look like a ball.
I've been wanting to get this shape created for ages.
Thanks and look forward to seeing this.