I dropped my motorcycle helmet in an awkward way and snapped a tab on the pivot mechanism. It was a cheap plastic part with a carbon fibre texture so it was a good candidate to be reprinted. Replacement parts are $30 but I couldn't get them in store anywhere.
I printed in PETG though I'm sure PLA won't be an issue. Helmet doesn't get too hot and it's not under stress at rest so creep won't be an issue either.
Uploaded model is for the right side of the helmet. You can mirror it in the slicer for the left.
The author marked this model as their own original creation.