I have three products each having different flavors . Now I want to show a flavors for each of them when they select a option set of pick your own and i have another option called pre-selected what I am doing is :

Added'Entity Reference View Widget' module, created an 'Entity Reference View' View to display 'Cookie flavours' taxonomy as part of the option set on the product page.
Added 'Conditional fields' module, and created dependency so that choosing 'pick your own cookies' makes the 'Entity reference view' with cookie flavors visible.
Added taxonomy terms (with images)
The 'Entity Reference View Widget' module is not fully working (https://drupal.org/project/entityreference_view_widget) - it should react when you click on the check box for the taxonomy terms, but it doesn't...