I used a lot of purple pieces and triangular support pieces to make this, but I'm sure you can come up with your own way, if you don't have these pieces.
This table is supported by the outer walls, and what is inside the middle (like the triangular pieces) doesn't really matter, as long as you are able to support the sides.
Therefore, if you make this, with the triangular pieces, go ahead and play around with the arangement of the triangles.
The extra back support isn't needed, just there because it looks kinda nice and I was planning on gluing some rubber or something table-adhesive-not-permanent-ness wise on it to keep the whole thing from slipping.
This is my first instructable!