This is a very small ball machine I made some time ago. This ball machine can carry up to 6 balls!!!!!!!!!!!!!!!!
If you have any questions then feel free to ask!

Step 1: Piece Count

Rods
green - 10
white - 8
blue - 27
yellow - 2
red - 4
Total Rods: 50

Connectors
dark grey - 1
light grey - 2
orange - 11
red - 6
green - 9
yellow - 4
blue 3D - 4
purple 3D - 8
Total Connectors: 45

Other
blue spacer - 10
grey spacer - 8
y-connector - 4
tan-clip - 1
Total Other: 23

Grand Total: 118

Step 2: The Base

First make the base.

Step 3: Turning Rod

Time to make the rod that turns!

Step 4: The Motor

Now add the motor. you can also use a different motor, but you'll have to invent that part then on youre own, and make sure that it turns the right direction.