I make a marbles with trails
Perfect

special
Try to play
Make a size this trails and marble
Clone a marble, then (devide 2) size. if marble big
Will be clone back (forever)
Seems a birth marble.
Marbles is contain scripts
Drag all marbles to drop into components if you want.
!! Don't forget put into your inventory< if you can't script.
Put pack to create a marble race.
A spawner this
If too much more marbles, then undo.
!! At not responding if too much objects.
Using for this game
For physics