The buttons being replaced are the "Lifter", "Repeat", "Start" and "Stop" of the Denon DP-35 F

I printed it in PLA on an Ender 3. By printing with the button faces on the bottom, this may create a lot of support structures, but the buttons will turn out much better. Additionally, you don't want any support structures on the button stalks, as they are quick and easy to break.

I made the bridges between the buttons and the main assembly a little thicket then the original. My tester aka father, liked it more and it feeld a bit more secure. 

Sorry I created this a year ago and have no final image of it in use.