I can remember making a thread on this about 2 years ago with one eye in it that I drew, but I can't find it to bump it.
So I'll make a new one.
Here's a few Big Brother Eyes that I've drawn - Just recently did the BB12 one this morning, the rest were done a year ago.
The BB5 one is incomplete.
I drew the BB9 one in school last year out of boredrom.
With the rest, I basically just had the eye infront of me on the computer and drew it step by step, I tried to trace the BB12 one because the shape was hard to draw with my hand
but I failed.