make 2 locators place other under the hand and other ib the world. Then constrain the object to BOTH locators and animate the weight.
so how can i work with this and let me know is there any script for handle in easy way....
if you dont know wjhat your doing it will be hard no matter what. a script can make original parenting easy. but thing is once you change your mind you need to know hgoew to dio it manually because its not going to help you tweak the results.
Its easy but requires you to think, sorry.