UPDATE 1

I have found out so far the best sound would be 2 scoop of rice per egg.

I did try BB's and it is too loud

the MAGIC EGG SHAKER is a music instrument that is easy to play, anybody can join a JAM with these shaker and they introduce your guess into speaking about 3d printing.

they will wonder how its made, how you insert the media in the egg, perfect time to explain how you made a pause in the gcode so you can add the BB's

I desing a little cup that print in the same time as the eggs so when it pause you take the cup, fill it with bb's, rice, cutted filament , etc…

then resume the print and you have a nice little egg shaker!

print without spport but the last 6 layer could be better and I will work on that in the next days

I suggest using the cool plate with glue to maximise your chance of bed adesion!

thanks have fun