Binary boobs?
You mean like this?:
11111111000000000000000011111111
11111000001111111111110000011111
11110001111111111111111110001111
11100111111111111111111111100111
11011111111111111111111111111011
10111111111111101111111111111101
10111111111111000111111111111101
10111111111111101111111111111101
10111111111111111111111111111101
10111111111111111111111111111101
11011111111111111111111111111011
11100111111111111111111111100111
11110001111111111111111110001111
11111000000000000000000000011111
<EDIT>
Wait, that looks more like a donut.
</EDIT>