There is a newer version of the Party Button here.
Why not? Our kids love dance parties and they love them even more if they can initiate them! When we first got the idea for the project I quickly ordered several boxes off ebay but was quickly demotivated when I realized none of them would fit the electronics and the button. This change about a year later when I got my new 3d printer. Once I mastered how to use it, learned Fusion 360 it was game on and in fact this was my first "practical" use case for the printer. The design took a few iterations and I ordered a few extra parts from pololu.com to make the circuit easier but so far it works pretty well. There is a lot of room for improvement but, if it ain't broke, why fix it?