Hi Milos Thanks for your sugestion….but i got the balloon to work that it does not merge…it is/was just a rigid body tag….the baloon only get a solid shape in Animation…but when freezframe you can see/have a merg effect.
but now i have a new problem….and that is to connect the dynamic spline to the balloon.
I fix/set the point to the balloon….the spline does follow the balloon but it has some distance between the balloon and the string….but this only happens when the balloon flys away.
Does anybody know how to constraine the dynamic string/spline to my balloon….every tutorial i see they have the same problem.

Please Help wanted…i realy want to get this to work….because i am going to use this a lot