For C’s birthday I bought 5 36” diameter latex balloons in three different shades of pink. Although the website I found them on suggested they would be about $1/balloon to fill with helium, G reported it was more like $8/balloon. Gah! Also, he couldn’t get them all home in the car. To two he added some fixative that makes them last longer; those are the two I was able to photograph on a later date.
Not my best photography—but a pretty good balloon purchase (not sure if we would do it again given the cost of the helium though).