Natural big S:

`x = 16, y = 16, rule = B3/S23`

2b2o2b5o2bobo$2b2obo2bobob3o$o6b3obo$ob3obo2bo3b3o$2obob4obobo2bo$ob2o

bob3o2bo$3o3b3o6bo$2o2b3o3bobo$2bobob3ob2ob3o$2b4o2b2o2b2obo$bobo2bobo

3bo2bo$3obob2o3bo$o2b2obobob3o$b2o3bo2bobobo$b3ob2obob3o$b2o3b2o3b2ob

2o!

`x = 16, y = 16, rule = B3/S23`

3bobobo2bo2b3o$2o3bob3o2b3o$2bob2o3b3ob2o$4bo3b3o2b3o$3obob2o4b2obo$bo

b6o2bob2o$2bo4bob4o$2o3b3o3b2o2bo$2o4b3obobo2bo$3ob3obo2bobobo$ob3obob

o2bo2bo$2obob2ob2o2bob2o$obobo3bo2bobobo$bob3obobo5bo$2bo6bobo2bo$b2o

2bobo3b2o2bo!

Natural shillelagh:

`x = 16, y = 16, rule = B3/S23`

obob3obo2bob2o$b4o2b3o2bob2o$2o3b3obob3obo$b2o4bo2b2o$b2o3b4obo2b2o$ob

2ob2ob7o$2o6b4o3bo$4obo4b2ob3o$2o2bob3o2b4o$bo3bob2obo2b3o$2o2b2o5bobo

$o2b4o3b2o2bo$o3bo2bo2bobo2bo$4bo4b2o2bo$ob2o2b4obob2o$3b4obobobo2bo!

`x = 16, y = 16, rule = B3/S23`

b3ob2o2bo5bo$ob2obo2b5obo$4bobobo2bob2o$obobo2bob3obobo$bob5ob4o$o2bob

o2bobo4bo$4b5o3b2obo$2b4o5bob3o$2b2ob2o2b2obo$2ob2ob3o5b2o$2bo2bo2b2o

2bob2o$bo4b2ob2o$ob2obob2ob3obo$b3o2bobob3obo$ob2o2bo2b2ob2obo$bobob2o

b2o5bo!

Natural cis-boat and cap

`x = 16, y = 16, rule = B3/S23`

3o7b2o$2b3o4b4o$ob2obobo7bo$2ob3o4bo3bo$ob2obobo3b3obo$ob3obobo2bob3o$

o3b2o4bo$3b2o2b2ob2o2bo$2ob4o3b5o$bo3b4obo$b3ob4o3b2obo$2b2o2bob2o2b3o

$bob2ob3o4b3o$2obo2b2o6b2o$ob2o5bob2o$b6ob2ob2ob2o!

Natural long ship:

`x = 16, y = 16, rule = B3/S23`

b3ob6obo2bo$6bobo5b2o$2ob2obob3ob4o$3bobob2o2bo3bo$o4b2o3bobo2bo$o2b4o

2bobo3bo$bo2bob6o2bo$o2bo5b2obo2bo$o3bobo4bo3bo$o2bob2obob2o$2b3ob3ob

2ob2o$bobo2b3obob2obo$bobobo2b3obo2bo$b4o2b2ob3o2bo$obo2bobob2ob4o$o2b

3o2b5obo!

`x = 16, y = 16, rule = B3/S23`

5o2bob4o$3b3o4b4o$2obobob2obo$2bo2bo2b4ob2o$b4obob7o$9b3ob3o$2b5o4b2ob

o$bobob3o3b3obo$o2bo2b2o6b2o$2o2bobo2bobo2bo$3o2b4o4b2o$2bo2bo2b2ob2o$

b2o3bo3bo2b2o$bob2ob3obobo2bo$obobob2ob4o$bob2obo3bo!

I found all of them by hand.