x = 12, y = 10, rule = B36/S23
b3o7bo$boobbobooboo$3b3o4bo$bobbobo3bo$o4bo4bo$o4bo4bo$bobbobo3bo$3b3o
4bo$boobbobooboo$b3o7bo!
This is the "turtle" period 3 c/3 spaceship from Life which also works in
HighLife.  None of the other known period 3 spaceships from Life work in
HighLife.
Dean Hickerson, 1994