Build-a-product

[Morrigan]

I'm looking for something similar to the way IPS does the suite. I want a base product and then addons that people can add-on with. Does anyone know of a good way to complete this sort of thing with Commerce?

I know I can create a product that requires it be associated with another product but I want a cool little doo-dad where they can choose the addons from the order screen and order it.