If you have a tendency to (or just a fear of) knocking over your soda cans, put them in one of these. Customization allows aesthetic or functional adjustments, to match your tastes or to stabilize other cylindrical objects.

Should print without supports. The Customizer will let you decrease the rod size below 4mm if you want, but in my experience, anything below 4mm is very likely to break during removal from the bed -- at least in PLA. Your experience may vary if you are using other materials.

I've generally printed these at 0.3mm layer height to increase their strength (and decrease print time). Not a lot of fine details, so thicker layers seem to be fine for most configurations.