A comprehensive collection of Failure is Unknown collaboration yo-yos from 2015-2026.
2015
2016
2017
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Jan 25 | Yoyofreaks | Yourmom | 10 |
| May 10 | Duncan | Origami | Unknown |
| May 17 | Yoyofreaks | Hashtag | 10 |
| Jun 3 | CoroCo | Tako | Unknown |
| Jul 31 | Topyo | Turbine | Unknown |
| Aug 8 | Yoyofreaks | Pound | 10 |
2018
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Jan 3 | CoreCo X SF | BFF | 35 |
| Mar 2 | Yoyofreaks | Bi-mom | 10 |
| Apr 29 | SF | Cadence | 50 |
| Jun 23 | Yoyofreaks | SF | 10 |
| Sep 12 | A-Rt | Knob | 40 |
| Oct 27 | CoreCo | Diesis | Unknown |
2019
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Feb 23 | Japan Tech | Linkx | Unknown |
| Mar 5 | SF | Statement | 35 |
| Mar 9 | Unparalled | Ignition | 30 |
| May 16 | SF | Cadence CS | 50 |
| Jun 21 | Japan Tech | Shaqshine | Unknown |
| Jul 3 | Duncan | Grasshopper | 35 |
| Jul 12 | Yoyofreaks | Freak | 10 |
| Jul 21 | SF | Statement | 35 |
| Aug 16 | SF | PLSTC | 150 |
| Sep 5 | CLYW | Pickaxe | 50 |
| Sep 12 | Timber | Enknown | Unknown |
| Sep 30 | PDX Yo | Batsquatch | 20 |
| Nov 9 | Iyoyo | Barbarian | Unknown |
| Nov 21 | Anomaly | Euphonium | 15 |
| Dec 11 | CLYW | Peak 2 | 25 |
| Dec 30 | Yoyofriends | Hummingbird | 30 |
2020
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Jun 22 | 2sick | Crusade | 25 |
| Sep 15 | OST | Confluence | 25 |
| Sep 21 | Spiral | Kappa | Unknown |
| Sep 28 | Hspin | Pyro | 100 |
| Oct 3 | C3 Yoyo Design | Galaxy Diver | 30 |
| Oct 7 | Yoyo Factory | 720 | Unknown |
| Oct 9 | Duncan | AL Bionic | 50 |
| Nov 19 | Duncan | AL Black | 50 |
| Dec 14 | Yoyo Palace | Answer | 30 |
2021
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Jan 18 | Yo-yo Palace | Code | Unknown |
| Jan 25 | Reykjavik | Frejya | 45 |
| Feb 7 | RSO | Bowl | 37 |
| Mar 25 | CLYW | Akita | 50 |
| Apr 8 | Yo-yo Palace | Code Silver | Unknown |
| Apr 16 | Duncan | FH1 Black | 60 |
| Apr 16 | Duncan | FH1 Bionic | 60 |
| Jun 3 | Japan Tech | Gadget | Unknown |
| Sep 17 | Freshly Dirty | 44 Mod | 20 |
| Oct 1 | Duncan | FH1 Titanium | Unknown |
| Oct 8 | Thesis | DaCapo | Unknown |
| Oct 17 | Jake Bullock | Slam Dunk | 25 |
| Oct 22 | Zipline | BMC | 35 |
| Oct 22 | Zipline | IST | 30 |
| Nov 19 | RSO | The End | 36 |
| Dec 2 | Throwing Sideways | Parthenon | 25 |
2022
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Feb 1 | Far and Few Between | Inception | Unknown |
| Mar 22 | Duncan | FH1 (plastic) | Unknown |
| Apr 8 | Duncan | Butterfly AL | Unknown |
| Jun 21 | Japan Tech | Trueno | Unknown |
| Aug 19 | MK1 | RBC | 35 |
2023
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Apr 6 | CLYW | Pickaxe V2 | 50 |
| May 11 | Japan Tech | Kagerou | Unknown |
| May 16 | Topyo | Colossus VI | Unknown |
| Jul 6 | CLYW | UnWish | Unknown |
| Oct 18 | W1LD | w!ld | Unknown |
| Nov 3 | SF | BD (all variants) | Unknown |
| Dec 10 | Far and Few Between | Dreamer | 35 |
| Dec 26 | CLYW | Otter | Unknown |
2024
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Feb 16 | MK1 | Unicorn | 40 |
| Apr 20 | Mile High Yoyo | UnGnome | 60 |
| Sep 6 | Ikimono | Tomo | 35 |
| Sep 27 | Beyond Yoyo x Duncan | Butterfly | Unknown |
| Dec 6 | MK1 | Ring-Bearer Un-Seen | 50 |
2025
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Feb 22 | Empathy | Empaths | Unknown |
| Mar 28 | Turner Return Tops | Sago | Unknown |
| Apr 19 | Jake Bullock | Un-Dew | 17 |
2026
| Release Date | Manufacturer | Model | Production Count |
|---|---|---|---|
| Jan 30 | Turner Return Tops | Turtle | Unknown |
