Easter Eggs (Online)

The following are Easter Eggs found in :

Braveheart

 * Bumnog wears Scottish Face-paint, which very few NPCs have.

The Brothers Grimm

 * Legends of the Forest's author is "The Sister's Glumm", and obvious reference to The Brother's Grimm.

Duke Nukem
Guards will occasionally comment "I love to crush skulls and eat sweetrolls, and I've no more sweetrolls.". (I like to kick ass and chew bubblegum, and I'm all out of gum")

Harry Potter

 * Academy Supplies (Book) - is a reference to the Hogswarts Acceptance Letter
 * Dangerous Webs Quest. Characters wants the Vestige to "Follow the Spiders".

Lord of the Rings

 * Toothmaul Gully (Location) - "Gollum" can be heard, saying "Precious".
 * Another one is in Auridon, (Vulkhel Guard), where different NPCs talk about wanting fish, raw and wriggling - again, similar to Gollum.
 * Long Lost Lore features ancient writing that can only be revealed by fire, which is similar to Sauron's Ring.

One Fine Day

 * Sir Cadwell's initial speech is a modified version of One Fine Day.

Pirates of the Caribbean

 * One of the in-game books is called Pirates of the Abecean.

Winston Churchill
During Long Lost Lore, Sheogorath talks about "a contest, wrapped in a mystery, with an enigma glaze". This is a reference to a popular Winston Churchill quote, regarding Russia.

Daedric Artifacts
A number of Daedric Artifact lookalikes appear in game. These include:
 * Mace of Molag Bal. A similar weapon can be found on a dead Cultist during Anchors from the Harbor.
 * Wabbajack.
 * Fork of Horripilation.

Mudcrabs

 * Three-Toes, a character in Bleakrock, will comment "Mudcrabs, Delicious creatures" if spoken too. This is a reference to a popular non-player character comment, "Mudcrabs. Vicious Creatures".

Staff of Chaos

 * Sheogorath talks about this during Long Lost Lore ( Reference)

Numidium

 * Sheogorath talks about rebuilding this during Long Lost Lore.

Skyrim

 * In Marbruk, in the Mages Guildhall Vault, the rare plant of Crimson Nirnroot is located. If asked about it, the Captain will remark "We thought this was just a Nord's Tall Tale".

Huevos de pascua (Online)