We started by using these ginormous marshmallows but I quickly realized that yes, they may be cute, but the smaller ones travel much further and entertain them so much longer.
We certainly will be catapulting all of our marshmallows from now on. This gives snack time a whole new meaning!
**UPDATE: We had some minor issues with the bottle cap staying glued on, so we kept it off and realized that those marshmallows REALLY flew then!**