How to choose Product or product custom fields

[scoody]

Hi,

I have some trouble understanding how to build my VM 2.0 shop :

Example :

i want to sell ball and in option string to attach balls ... i can do this with product custom fields !

But one customer wants perhaps to buy just the string .

in fact the string is a product ( should the ball be a parent category ?) , and the string is a product custom fields ??


The idea is that i have some options to show mandatory for some products (customer says yes or no if he wants them) and it's also some items .

Help would be great !