The following p6 c puffer with an initial population of 38 cells, which is the smallest known p6 puffer that isn't divisible into component puffers or spaceships. It is useful in anchor track flotillas such as the monster puffer.

revolver puffer.png

x = 20, y = 14, rule = s0/b2
14bo$10b4obo$16bo$17bo$13b2obo2bo$obo3bo3bo5bo2bo$17bo$17bo$obo3bo3bo
5bo2bo$13b2obo2bo$17bo$16bo$10b4obo$14bo!