Happy Jar is a gag-a-day webcomic that updates every Tuesday and Friday. The strip began life as a joint project between two high school students, Tom Fonder and Tobias Phoenix, and amounted to little more than classroom notebook doodles that were repurposed digitally to be shared amongst friends. Eventually realising the potential of not having every strip be self-referential inside jokes, the focus soon shifted toward pleasing an audience wider than three people and Happy Jar was born.
Tobias Phoenix has since left the comic, leaving Happy Jar a solo endeavour for the foreseeable future.
Source and fresh comics are here