Simple structures - triangles

TRIANGLES!

I moved of from the previous square based structures onto that of triangles, much more sturdy and I think more potential for experimentation.

 Attempting to replicate a similar structure to the one above, didn't really like this idea too much.

Another attempt and replication, didn't like this one at all either as keeping the pyramid shape whilst attempting to join into a pattern was too tricky.

  I think i'm gonna stick with triangles and attempt to experiment more.