we are using magento 1.8.ce
The most products in our store are configurable products with associated simple products.
Now we going to sell Beanies from a brand (in different sizes) Eacht size is a simple product associated with the configurable product.
Besides the beanies we also have matching scarves (the are simple products, one-size)
What i would like to see is when the beanie is shown, the customer has directly the option to buy the matching scarf too ...
And preferably the other way to ... when a customer buys a scarf he has the option to buy a matching beanie (with size selector too ...)
How can i do this?