PromoPlot: Covering open-access fees by filling wasted space in corner plots

In an effort to reduce drain on grant funds and decrease unused space in publications, we have developed a Python package for inserting advertisements into the space left empty by corner plots. This novel technique can allow authors to reduce or eliminate publication charges for journals such as MNRAS and ApJ. In order to offset publication costs entirely, we recommend that authors include anywhere from 200-700 corner plots per paper, with the exact number depending on the journal used. Finally, we discuss other opportunities to generate ad revenue through publications.