`x = 5, y = 12, rule = B36/S23`

2b3o$bo2bo$o3bo$o2bo$3o6$2b2o$2b2o!

EDIT: Found out that this doesn't work. This does:

`x = 12, y = 13, rule = B36/S23`

2b3o$bo2bo$o3bo$o2bo$3o$8b2o$8bobo$10bo$10b2o$5b2o$5bo$6b3o$8bo!

No it doesn't! This actually does:

`x = 13, y = 11, rule = B36/S23`

2b3o$bo2bo$o3bo$o2bo$3o3$9b2o$9bo$10b3o$12bo!

But that only works in certain situations. Two molds can be used in other situations. (That last sentence was based off of David Bell's text.)

This converts a replicator into a bomber (based on the above):

`x = 9, y = 13, rule = B36/S23`

2b3o$bo2bo$o3bo$o2bo$3o5$5b2o$5bo$6b3o$8bo!

LWSS synthesis:

`x = 8, y = 18, rule = B36/S23`

bo$2bo2bobo$3o2b2o$6bo12$6b2o$5b2o$7bo!

I also accidentally found the "Ruler Rule" posted earlier.

Post anything else of note that is found accidentally and is not in Conway's Game of Life.