Thanks for the additional information, pinareris.
With this information, I would suggest the following:
Take the Spline Sketch and draw a wiggly line from the hand to the shoulder. Click in the Object manager to deselect the object.
Draw now another from the shoulder to the hand. Click in the Object manager to deselect the object.
If you have a few of these, select all Spline objects, and set num*10 into the Position Axis that is so far flat for your object.
Press return.
Now go into Point Mode and use the Mesh> Move> Magnet tool. Move them closer together in a random way.
While all stay selected, Object Manager> Object> Connect Objects
This new spline is the position source: Mode> Object for the Cloner Object.
Add a Sphere and a Random Effector set only to Scale.
Add a Dynamic Tag, and set the Force> Follow Position to a higher value than zero.
In the Cloner> Object adjust the Amount, as well as the Rate value (This animates the Spheres)
Adjust the Force> Position of the Dynamic Tag to your liking.
Example file
https://www.amazon.com/clouddrive/share/bxybsVnI8zB9WZVkqmqR36tZODCNO7z9E49XGWiwYUh
A short run down:
https://www.amazon.com/clouddrive/share/3mo3wtCz6bak6NqtKlT1qId7EpVN3MWz1IsEanCxlXE
Enjoy your project