I let J mash all the bananas. We literally squished them out of the peel into the bowl, a process we decided was "cool" and "gross" at the same time. After all the peels had been tossed it was his job to mash them all with the back of a fork. At the same time I started cutting up the butter to let it soften and put together the dry ingredients (as can be seen in the picture below).
When the butter softened enough I began to make. Here's a picture of me baking in my nice LONG elegant emerald green skirt. I love LOVE LOVE this skirt. It's perfect when I want something that simply drapes down.