If Sandy won’t add a Penguin to every single PG game, then I will homebrew it. Note, I’m not going to put Cthulhu Wars or 8-Bit Attack on here because they’ve already got Penguins. All of the games with * are games I do not own and haven’t played, so I apologize if there is a card or ability with a similar ability already, or if they already have penguins in it.

Dicenstein*
Giant Albino Penguin Dice (Count 9)
Face 1: Penguin Head; -1 Brains, -1 Dig, +1 Health
Face 2: Penguin Body; -1 Attack, -1 Brain, +1 Health
Face 3: Penguin Body; -1 Attack, -1 Dig, +1 Health
Face 4: Penguin Flippers; -1 Dig, -1 Move, +1 Health
Face 5: Penguin Feet; -1 Move, -1 Attack, +1 Health
Face 6: Penguin Feet; -1 Move, -1 Brains, +1 Health
Embarrassing: You must use as many Penguin parts you can when you build your Monster. When a Monster gains a Trophy from you, they must take a Penguin Die

Glorantha: The Gods War
Penguins (Cosmic Monster)
Combat: 0
Placement: Do not place any Penguins at the start of the game. When the Great Compromise is triggered, the Player with the least VPs places 1 Penguin in any Area. Then, the Player who triggered the Great Compromise places the second Penguin in any other Area.
Council Phase: All Empires with units in at least 1 Penguin’s Area earn 1 VP. 
Special Abilities
Waddling (Ongoing): Whenever any Units move out of an Area with a Penguin, the Penguin moves with them for free. It must move to the Area where the most Units move.
Laughingstock (Battle): If an Empire declares a Battle against another Empire in an area with a Penguin, they subtract 2 Combat for each Penguin in the Area. If any Empire declares a Battle against any Penguins, they do not reduce their combat, but they must reduce their building in the Area by 1 type. (From a Ziggurat to a Temple, and a Temple to a Shrine. Shrines, Castles, Towers, and Chaos Nests are destroyed.)
Killing Penguins: The Penguins can only be killed if both Penguins are in an Area with your building and are both killed or eliminated. An Empire can only declare a Battle against the Penguins if they are in an Area with their Building. The Empire that kills the Penguins puts both of them in their Unit Pool and takes their Reward.
Reward Disarming (Action Cost 0): If both Penguins are on the Map, reduce any Buildings in their Areas with one a step lower. If they are not, place any Penguins in your Unit Pool at any of your Buildings. 

Evil High Priest
Giant Albino Penguin (Monster)
Monster Strike 0
You may discard the Giant Albino Penguin to have an Investigator in any Lair skip their current Chamber.

Planet Apocalypse
The Penguins (Third Circle Demon)
At the beginning of the game, you may decide to switch the Cacodemons with the Penguins. In all cases, any references to Cacodemons or Third Circle Demons refer to the Penguins.
Attack: 0, When a Hero makes an Attack in an Area with a Penguin, they step down all their Dice, to a minimum of D4.
Defense: 3+3

Startropolis
Penguin Infestation (Module Card, Count 2)
Cost: 8M
When you buy this Module, take a Penguin and place it on any Module owned by any player. That Module now makes negative revenue. (Subtract the Revenue of the Infested Module from the Revenue Track instead of adding it.)

Hyperspace
The Penguins (Space Monsters)
If any Player has fewer that 2 VPs, then discard this card and draw another. Otherwise, place 1 Penguin in any system, and the other Penguin in any other System. 
Combat: 0; Defense: 10 (F)
Laughingstock (Ongoing): If any Civ declares battle in a System with a Penguin, they swap all their ships in the System they declared Battle in with all their ships in the System with the other Penguin, even if there are no ships there.

Eternal Adversary*
Penguins (Chaos Event, Count 2)
Place a Penguin at any Location. Order Heroes’ Attacks are all Cursed in Locations with a Penguin. Penguins count as a Chaos Monster which have 5 Health, no Armor, and no Attack.

Tooth Fairy*
Penguin Teeth
Put 5 teeth of each color in each bag, choose one bag to be the Penguin’s bag. Place the penguin and its bag in the middle. One player pulls five teeth from the penguin’s bag, one at a time, and places it in front the penguin. On the count of three, all players pull teeth out of their bag one at a time and either places them in front of them, or returns them to their bag. If a player has the same colors of teeth in front of them as the penguin has, they can grab the penguin. The first person who grabs the penguin and has the correct color of teeth in front of them wins.

Dinosaur 1944*
The Giant Albino Penguin (Neutral Boss)
Second Invasion, Round 1
Move: 3
Attack: None
Defense: None
Health
-Two Players: 3 Health
-Three Players: 4 Health
-Four Players: 5 Health
Abilities
-The Giant Albino Penguin deals 3 Damage to the Camp.
-All Heroes in an Area roll 1 less White Die.
-The Giant Albino Penguin takes 1 Damage every time it moves.

Unlocking Insanity
Penguin Dice (Count 2)
The Penguin Dice are silver dice, one with 2, 2, 4, 6, 8, and Penguin Faces, and once with -2, -2, -4, -6, -6, and Penguin Faces. They are added to the respective dice pools and can be rolled like normal dice. Numbers rolled on the Penguin Dice are a wild color, and may be put in any part of the board. However, if on your turn you roll a Penguin, you must draw a Penguin in any Space on your sheet. You cannot put any other numbers there. At the end of the game, if you have an odd number of Penguins on your board, halve your final score. If you have an even number of Penguins, double your final score.

2 Minute Dino Deal*
Penguin Tokens (Count 20, in five different colors with 1 to 4 on each of them)
Every player replaces a 1, 2, 3, and 4 Token with a Penguin Tokens of their color. During play, all players may place a Penguin Token just like they would a normal token. Once the 2 minutes is up, players take their cards in front of them, just like normal. However, if there are an odd number of Penguin Tokens played, all cards with a Penguin Token are ignored. If there is a even number of Penguin Tokens played, all cards with a Penguin Token are doubled. 

Invasion of the Brood*
Giant Albino Penguins (Count 7)
3-5-1
Every time a Project Orion Missile is Launched, a Giant Albino Penguin is placed in the Area the missile was launched from. (Either Antarctica or the Mountains of Madness.) Giant Albino Penguins can be moved by both the Brood and Humanity to any Area, and can be activated to Berserk and Battle with either side. Penguins are the lowest priority for Humanity in battles. They can move through Ocean Areas and be counted for Naval Interception, but only by the player who’s turn it is. 

Marry the Monster*
Suddenly, Penguin! (Count 2)
Place a Penguin in any hex. If the Fachan move onto that hex, then it stops there and the Penguin is removed from the board.
Where’d that come from?

Evacuate*
Penguin Habitat (Station Card, Count 2)
When this card is revealed, place a Penguin on it. Every round, after the Nomians Attack, Move all Penguins 1 Station the way the Direction Arrow is pointing. Any Survivors in a Station with Penguin move 1 less.

Potions and Profits*
PR (Penguin Representatives) (Investment Card)
WHEN PLAYED FACE UP
(Choose another player. They hired Penguins to sell their potion who do a horrible job. Subtract 20 PR Value from their Potion.)