Drawer and cabinet knob

I had this colorful cabinet that was custom made for the kids room. The knobs made by the carpenter kept getting loose and breaking. On top of that they were not very aesthetic.
We endured 6 years with this knobs getting loose and exposing the screw which worry us because that was the room for our kids play in.
Some months after I bought my Afinia it hit me. " - I can make one knob out of ABS plastic!!"
It took three tries, the third one was perfect. It screwed on the same wood screw t