Protect sleeves for the AMS funnels?

Does anyone have a recommendation for a protect sleeve/button for the funnels on the AMS, where the filament is loaded? I have tried using the ones provided by the same designer as the Hydra AMS, but they are hard to get on without damaging them, and once they are on somehow they are loose and come off quite easily. Looking for other suggestions.

I have this one and it’s fit perfect

https://www.printables.com/de/model/369815-perfect-fit-bambu-labbambulab-ams-feeder-button-co/comments/680146

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