So I've been working on a home project of creating a movable, self contained, ergonomic beer small (3-6 GA) home brew kit. I'd like to be able to fill and cap 6 bottles at one time. I'm working on a prototype for the filling process but need some ideas for how I could apply 6 caps to six bottles at the same time. I've been thinking about a large lever arm that could be pulled down onto a fixed arrangement of bottles. Anyone have any other ideas here?