Put marshmallows onto the lollipop sticks or paper straws.
Place the nuts in a pie plate or other shallow dish.
Unwrap the caramels and place in a large pan along with the half and half. Over medium heat, melt the caramels until thoroughly melted and smooth, stirring constantly.
Dip the marshmallows one by one into the caramel, and then roll in the nuts.
Place them on wax paper, and let the caramel set--an hour or so--before serving.