ConwayLife.com

6c/20 in Rule 1 from Catagolue:

single-barrel T gun in rule #6:
x = 130, y = 125, rule = B3-c4ej5aei/S2n34-aik5-jq6ci7e8
36$40bo$39b3o$40bo5bo26b2o$40bo4b5o23b3o$40bo5bo26b2o18$94bo$93b3o$93b
3o4$39b3o$39b3o$40bo18$93bobo$93b2o$66b2o23b2ob2o$65b3o24b2o$66b2o23b
obo!

You can use a p9 to block the other output:
x = 35, y = 14 ...

Double post, but 4c/40 spaceship and rake in Rule 4:
x = 177, y = 263, rule = B2n3-eknq4-arty5cjkr6-in78/S2n3-c4-acijz5-jy6-ek7c
43bo93bo$42bobo89bo$42b3o90bo2b2o$43bo92b3o$136b3o$29bo106bobo$29b2o
124b2o$30b2o120b5o$121bo33b2o$121b2o$122b2o51b2o$172b5o$45bo129b2o$44b
3o$45bo91bo$15b3o27bo90b3o ...

Crossposting my 8c/56o in B2ac/S.

8c/48 in Rule 4:
x = 122, y = 230, rule = B2n3-eknq4-arty5cjkr6-in78/S2n3-c4-acijz5-jy6-ek7c
4b6o102b6o$4bob2obo102bob2obo$6b2o106b2o$4bob2obo102bob2obo$3bobo2bobo
100bobo2bobo$4b6o102b6o$2bobob2obobo98bobob2obobo$2b2o2b2o2b2o98b2o2b
2o2b2o$3b2ob2ob2o100b2ob2ob2o$4b6o102b6o$2bo2b4o2bo98bo2b4o2bo ...

Interesting push reaction in ReplicatorsAndSnowflakes:
x = 10, y = 15, rule = ReplicatorsAndSnowflakes
4.2B8$A8BA2$A8BA2$A8BA2$A8BA!


C/3 p24 and p48 puffers and rakes:
x = 368, y = 119, rule = ReplicatorsAndSnowflakes
196.4B$195.A4.A$196.4B8$188.A18.A$187.A.A16.A.A$186.A.B.A14.A.B.A$
186 ...

P422 in Rule #5:
x = 18, y = 18, rule = B2cei3cejkq4ceqtwz5-cjy6-an7c8/S1e2ikn3-ckq4acikrw5aeij6-an7c8
15b3o$15b3o$16b2o5$8bobo$9bo$8bobo2$b3o$b2obo$o3b2o$3o3bo$3bob2o$3bob
2o$3b2o!


EDIT: 3c/11 in Rule #6:
x = 5, y = 10, rule = B3-c4ej5aei/S2n34-aik5-jq6ci7e8
b3o$b3o$2bo3$bobo2$b3o$obobo$2bo ...

Oscillator collection (Some oscillators from B35/S23 and B35/S34 are also included):
x = 721, y = 800, rule = MVS
12.A2.A2.A635.A5.A2.A2.A5.A2.A2.A18.2C2.2C$604.3B10.3B77.2C2.2C$422.A
2.A2.A5.A2.A2.A164.3B8.3B72.2C14.2C$18.A440.B.B20.2C51.2B24.2C91.A11.
A11.A12.2C14.2C$152.C42.C17.C14.C.C11.2C2 ...

6c/54 and smaller 12c/108:
x = 130, y = 62, rule = MVS
2.3C10.3C26.3C10.3C63.C$.2C.2C8.2C.2C24.2C.2C8.2C.2C60.5C$2C.C.2C6.2C
.C.2C22.2C.C.2C6.2C.C.2C58.2C3.2C$C5.C6.C5.C22.C5.C6.C5.C58.2C3.2C$
121.C3.C3$50.4A2$48.A6.A70.A$48.A6.A$48.A6.A2$50.4A70.A$124.A4.A$8.4A
116.A$126.A$6.A6.A$6.A6.A$6.A6.A2$8 ...

Many 2c/8 spaceships, a 3c/12, and two 4c/16:
x = 280, y = 236, rule = B2cei3aq4eknqrw5eijk6-ei7e/S12ikn3-ij4einrwz5aceik6aik8
3bo3bo16bo14bo14bo14bo11bobobo12bo12bo2bo4bo2bo13bobo13bo2bo44bo3bo51b
obobo15bobo$obobobobobo11bo3bo10bo3bo10bo3bo10bo3bo9bobobo10bo3bo10bob ...

P73 (the replcator was rephased):
x = 37, y = 10, rule = MVS
4.2C$4.2C15.3A2$19.A5.A$2C17.A5.A9.2C$2C17.A5.A9.2C$19.A5.A2$4.2C15.
3A$4.2C!

EDIT: Stable replicator track:
x = 403, y = 403, rule = MVS
234.2C.2C.2C$234.2C.2C.2C2$231.2C10.2C$164.2C65.2C10.2C$164.2C7$149.
2C$149.2C2$146.2C$146.2C2 ...

Surprisingly small c/16 in Rule #1:
x = 7, y = 72, rule = B2c3-ijn4enrtwyz5ciknr6-an8/S1e2-en3ejnr4aikrwz5aiy6-cn8
3bo$2bobo$2bobo$3bo$3bo$2bobo2$bo3bo$2bobo$o2bo2bo2$b2ob2o2$2bobo$2obo
b2o$b5o3$bobobo$b5o$bobobo$bo3bo$b5o$b5o$bobobo$2b3o$2bobo$2bobo$2b3o$
2bobo$2b3o$2bobo$2bobo$2b3o$3bo2$b2ob2o$7o ...

Spaceships made up of entirely sheriffs (B35/S23) and murderers (B35/S34), from new-gliders.db:

x = 638, y = 92, rule = MVS
12.B28.B27.B16.3B6.3B16.3B11.B14.3B5.3B12.3B13.3B.3B14.B12.B26.3C20.
2C20.3C18.2C12.2C10.4C4.4C10.4C11.2C17.4C19.2C13.2C40.3C39.6C26.2C29.
3C11.3C22.5C12.3C$11.2B26.3B25.2B ...

C/15 in Rule #1:

Reduced a lot:
x = 5, y = 217, rule = B2c3-ijn4enrtwyz5ciknr6-an8/S1e2-en3ejnr4aikrwz5aiy6-cn8
3bo$2b3o$b4o$bo2bo$bob2o$bo$bobo$bobo$bobo$bobo$b3o$b3o$bobo$bobo$b3o$
bobo$bobo$b3o$b3o$bobo$bobo$b3o$bobo$b3o$bobo$bobo$b3o$b3o$bobo$bobo$b
obo$bobo$b3o$bobo$b3o$b3o$b3o$bobo$bobo ...

C/15 in Rule #1:
x = 4, y = 3081, rule = B2c3-ijn4enrtwyz5ciknr6-an8/S1e2-en3ejnr4aikrwz5aiy6-cn8
2b2o$3bo$ob2o$4o$o2bo$3o$obo$obo$3o$3o$obo$3o$obo$obo$3o$obo$obo$3o$ob
o$3o$3o$obo$3o$3o$3o$obo$obo$obo$obo$3o$3o$obo$obo$obo$3o$obo$3o$obo$o
bo$3o$obo$3o$obo$obo$3o$3o$obo$obo$3o$3o$obo$3o$obo$3o$3o ...

C/14 in Rule #1:
x = 4, y = 349, rule = B2c3-ijn4enrtwyz5ciknr6-an8/S1e2-en3ejnr4aikrwz5aiy6-cn8
2b2o$4o$4o$2obo$3bo$bobo$bobo$bobo$b3o$bobo$bobo$bobo$b3o$b3o$bobo$bob
o$b3o$bobo$b3o$bobo$b3o$b3o$b3o$bobo$b3o$bobo$b3o$b3o$bobo$bobo$b3o$bo
bo$bobo$bobo$bobo$b3o$bobo$bobo$b3o$bobo$bobo$b3o$bobo$bobo ...

long c/13o partial in rule #1:

Completed:
x = 5, y = 658, rule = B2c3-ijn4enrtwyz5ciknr6-an8/S1e2-en3ejnr4aikrwz5aiy6-cn8
2bo$bobo$bobo$b3o$bobo$bobo$b3o$bobo$bobo$b3o$bobo$b3o$bobo$bobo$bobo$
bobo$bobo$b3o$bobo$b3o$bobo$bobo$bobo$b3o$b3o$bobo$b3o$bobo$bobo$b3o$b
obo$bobo$b3o$bobo$bobo$bobo$b3o ...

Apgspaceinvaders found a 2c/17 in Rule #5 easily.

4c/8 and 8c/16 puffer:
x = 31, y = 24, rule = B2cei3aq4eknqrw5eijk6-ei7e/S12ikn3-ij4einrwz5aceik6aik8
bobo3bobo14bobo$bobo3bobo11bo2bobo2bo$2bobobobo11bobo5bobo$b9o10bob3ob
3obo$bobobobobo10bob2o3b2obo$3bo3bo12bobobobobobo$3b2ob2o12bo3bobo3bo$
2b3ob3o11bobobobobobo$3bo3bo13bo2bobo2bo ...

5c/23 from my Rule #29:
x = 3, y = 1669, rule = B2cei3cejkq4ceqtwz5-cjy6-an7c8/S1e2ikn3-ckq4acikrw5aeij6-an7c8
bo$3o$3o$3o$3o$3o$3o$obo$obo$obo$obo$obo$3o$3o$obo$obo$obo$obo$3o$3o$o
bo$3o$3o$3o$obo$obo$obo$3o$obo$3o$obo$3o$obo$obo$3o$3o$obo$obo$obo$3o$
obo$3o$obo$3o$obo$obo$3o$obo$3o$3o$3o$obo$obo ...

3c/7 in Rule #5, found by use qfind to extend the partial (and change the symmetry to asymmetric):
x = 15, y = 298, rule = B2cei3cejkq4ceqtwz5-cjy6-an7c8/S1e2ikn3-ckq4acikrw5aeij6-an7c8
6bobo$2bo2b5o2bo$bo4b3o4bo$obo2bo3bo2bobo$o3bob3obo3bo$o2bob5obo2bo$3o
bo5bob3o$3obo2bo2bob3o$6obob6o$4obobobob4o ...

My LLSSS search for 4c/9o ended with no spaceships. Command:
./rlife llsss-recentering-wao --rule 'B2cei3aq4eknqrw5eijk6-ei7e/S12ikn3-ij4einrwz5aceik6aik8' --left-edge odd --wao-left-edge-errors --pre-reify-autochoke 32GB 4c9-f2b '@bg' 14
Final partial:
x = 181, y = 243, rule ...

3c/8:
x = 17, y = 104, rule = B2cei3aq4eknqrw5eijk6-ei7e/S12ikn3-ij4einrwz5aceik6aik8
bo13bo$o15bo$2o13b2o$o3bobo3bobo3bo$2o2bobo3bobo2b2o$o15bo$3o2bobobobo
2b3o$o2b2obo3bob2o2bo$o2b2obobobob2o2bo$3o2b3ob3o2b3o$o4bo2bo2bo4bo$4o
3b3o3b4o$o7bo7bo$2obobobobobobob2o$ob2o2bobobo2b2obo$2o4bobobo4b2o$2o ...

3c/11:
x = 11, y = 389, rule = B2cei3aq4eknqrw5eijk6-ei7e/S12ikn3-ij4einrwz5aceik6aik8
4bobo$4b3o$4bobo2$4bobo2$4bobo$2bob3obo$bo3bo3bo$2b2o3b2o$2b2o3b2o$2bo
5bo$2bo2bo2bo$4bobo$b2o2bo2b2o$2bo5bo$2b2o3b2o$3bobobo2$3bobobo$2bo5bo
$4bobo$3bo3bo$b2o5b2o$2b7o$3bo3bo$5bo$2bob3obo$2bobobobo$b2o5b2o$b3obo ...

P36 margolus oscillator in B2c3/S23:
x = 7, y = 9, rule = B2c3/S23
4bo2$2bobo2$o2$obobobo2$6bo!

Maybe it is already known in some other rules, but I still want to mention it in here.

EDIT: P18+4n:
x = 77, y = 13, rule = B2c3/S23
obobo15bobobo15bobobo15bobobo2$o5bo13bo5bo13bo5bo13bo5bo2 ...