Lamp Knob
thingiverse
Given that kids are around, I found a lamp knob substitute that's more durable than the initial one and also cheaper than the fuel expense required for reaching the hardware store. Here's how you can replace it in simple steps - print and install.
Download Model from thingiverse
With this file you will be able to print Lamp Knob with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Lamp Knob.