This family was not designed for any particular purpose. It began as a very condensed, sans serif face, and then I played with it to see what else it could become.
FourJuly contains three patriotic fonts that might be fun to use in July. They are also very hard to read, but perhaps not as hard as the somewhat similar letters in the fonts of FlagDay.
FourJuly A has square, blocky letters with star interiors.
FourJuly G and FourJuly H add diagonal stripes.