Free shipping icon

I would like to add a "free shipping "icon which looks something like the "out of stock" icon which automatically appears when the last product is sold.

I would like the "free shipping" icon to automatically appear when I assign the "yes, always free shipping" option to a product.

Hopefully. this "free shipping" icon would appear somewhere next to where the "buy now" or the "Add [ ]" icons appear.

Thanks for any help you can give me on this subject.

One of the easiest methods would be to add that to the function for the display price of the product ...

What this would do is add it everywhere you see a price ...

If you look in the file:
/includes/functions/functions_prices.php

there is a function for:
zen_get_products_display_price

You could customize that function to add the icon for the Free Shipping ...

You would need to pull the value of the field:
product_is_always_free_shipping

and when set to 1 it would be true ...

I appreciate the answer above:

However, my PHP skills are next to nil.

Has anyone done this before or can tell me the code to meet my objectives? I am sure other Zenners would like to use this feature.

Can anyone out there give me some help on the coding for a free shipping icon. I suspect it is less 5 lines long. If it is more complicated let me know and I will go to commercial help.

Thanks.