Shipping Tables plug-in - allow multiple classes to be added to a Product.
You should be able to turn off all the other shipping options and leave the table plugin on. If I could apply multiple shipping classes to one product, I could manually apply a wide variety of conditions on how the product is shipped.
Example: Multiple international and domestic conditions and offerings broken down based upon classes applied to the product. Multiple weight variations on international and domestic orders.
If customer "x" orders from country "y" charge "a" (with variations) or if ordered domestically charge "z" (with variations).
I should be able easily apply an international cost based on weight, as an example, and if the customer is domestic charge accordingly. Using nothing but the tables plug-in.