Ukulele Friction Tuner Button

Just a simple button made to fit cheap ($1/set?) ebay ukulele friction tuning pegs. The friction pegs I had were all black, and I wanted some in white for a build so I threw these together. I used M3x18mm phillips flat head machine screws to attach them to the tuners, I think the original screws were about 14mm so the model would need modification if you wanted to reuse those.