>> you could also use it to put water INTO the smaller 6-pack sizes of plants.
IF you have a steady grip. Sometimes my hand is shakey or I grip the bulb too hard.
I saved and cleaned some ketsup bottles and mustard bottles, with a small hole for squeezing out the contents.
A little up-down shake causes a little water to come out, broken up into droplets. A squeeze releases a steady (fairly gentle) stream.
I usually walk the stream continuously down a row, onto the dividing rib, so that it runs off gently into the cells on either side. Or I shoot a glob of water onto the corner between four cells.