Big Mouth Billy Bass (1999) (EU?) Singing fish fix parts

The gears on the Big Mouth Billy Bass can start slipping on the motor poles, these printable ones will be a tight fit, I shove them on with a wrench(down)/flat screwdriver(up).

I have been tinkering with these I am unsure which ones worked exactly for me, but some of these three have worked for me. I found these online I believe and modified them to suite my European model, as I remember it did not fit at all, nor the gear tooth sizes at first.