Woocommerce Custom Candy Store Setup

WE ONLY NEED TO PICK N MIX OPTION as seen below.

Please see attached example here : https://www.slikekspressen.dk/collections/bland-selv-slik

When customer are done picking, they should have the option to close the bag, put their name on it and mix a new one.

So basically you are able to mix candy bag for each person in the family.