I just quickly tested the Mamut VR Halo rings for the Quest 1 on the Quest 2 controllers, and I didn't experience any tracking issues (although the fit isn't perfect). : r/OculusQuest
Mamut Halo - Rift S / Quest – Mamut VR
Mamut VR Maxina
Mamut Grips³ – Mamut VR
MAMUT (@Mamut_VR) / Twitter
Mamut VR - We're happy to announce that the Quest... | Facebook
Mamut Touch Grips review: Untethering your wrists from the Oculus Quest | Android Central
Mamut Apto now available for preorder : r/oculus
Testing out these Mamut VR Halo... - Virtual Reality Oasis | Facebook
MAMUT (@Mamut_VR) / Twitter
Mamut Grips - HP G2 / Rift / Rift S / Quest / Quest 2 – Mamut VR