Hi,
I would recommend to create a custom field of the table "product" via the menu Display>Custom fields and use for example the "radio button" type.
That way, you'll be able to enter the different values for it, and in each product edition page, you'll be able to select the value you want for the product.
You can also use HTML for the radio values by entering a translation key in the value and then adding a translation override for that key with the HTML you want for your image:
hikashop.com/download/languages.html#modify