Rorschach

Obtained via a giveaway on Gleam. You must complete the Witch Queen campaign on Legendary, then enter the giveaway. 1,000 emblem codes will be given away randomly. Emblems were added to winner's Bungie accounts automatically on 2022-03-31.

Scientia Illuminata

This emblem is given out by Destiny influencers during late August 2022.

Bending Borealis

Purchase the Bungie Foundation Collectible Pin during the Bungie Store's COVID-19 Relief Charity period.

Follow the Light

Awarded by winning a giveaway. It appears that codes were delivered mostly to Destiny 2 content creators.

Circles Entwined

Purchase the Festival of the Lost 2018 Papercraft Masks set from the Bungie Store.

Opulence Corrupted

Purchase any qualifying item from the Bungie Store dring Black Friday 2022, taking place from 2022-11-25 to 2022-11-28.

After the Nightfall

This emblem unlocks after you beat the Time Trial times of each Nightfall Strike; these times need to be obtained after Forsaken's release. The site destiny.report has a great tool to track your Nightfall times, I've included the link below. Thanks to the "DestinyTheGame" subreddit for figuring out the times for each hidden Time Trial. Likely no longer obtainable after the release of Beyond Light and the DCV.

Aurora Clash

Compete in a Year 3 Bungie Bounty and win.

Together We Rise

Obtain this emblem by redeeming one (1) Credit during the Game2Give 2024 Fundraiser.Previously: Donate $50 to the Bungie Foundation during the 2019 MoxGauntlet fundraiser.

Venn's Pulsar

Obtain this emblem by redeeming one (1) Credit during the Game2Give 2024 Fundraiser.Previously: Donate $25 to the 2022 Bungie Gauntlet: The Journey fundraiser (link below). Codes should be emailed by June 10th, 2022.

Born of This

Available as a Twitch Drop during The Bungie Foundation stream at 10AM Pacific on 2024-07-25. Watch for 90 minutes to obtain this Drop.

Prost

Awarded by winning a Destiny 2 content creator giveaway during Season of the Witch (Season 22)

Entre Nous

Obtain this emblem by redeeming one (1) Credit during the Game2Give 2024 Fundraiser.Previously: Donate $25 (in a single donation) to the 2021 Mox Gauntlet (link below). Emblem codes should be distributed on August 26th, 2021.

Guardian's Call

Purchase the GameStop-exclusive Destiny 2 Cayde-6 Collector's Box. The emblem was packed in the box.

Apricot Dawn

In 2023: Awarded to the top three Technical and Charitable teams during the Guardian Games 2023 Fundraiser.In 2022: Obtained via a Chinese website giveaway. It appears that you need a Chinese phone number to obtain an emblem code.

Negative Harmony

Purchase the Destiny 2: The Final Shape Original Soundtrack Digital Edition from the Bungie Store

Silicon Frontier

Awarded as a Twitch Drop during The Pantheon Creator Challenge on 2024-05-28

Cayde's Last Stand

Emblem code is included in the box when purchasing the "Cayde's Last Stand" figure, sold by GameStop. Statue is no longer being produced. If you buy one second hand, please be careful where you buy one; you'll sometimes see people use the emblem then sell the figure separately without the emblem.

Guardians' Oath

Obtain this emblem by redeeming one (1) Credit during the Game2Give 2024 Fundraiser.Previously: Obtained by donating $25 to the Guardian Games 2022 fundraiser (link below).

Time Dilation

Purchase any qualifying item on the Bungie Store during the Destiny 7th Anniversary (2021-09-09 and 2021-09-10 before reset).