15 Volcano and Lava-Inspired Innovations

The undersea volcano that erupted near Tonga earlier this week has yielded some breathtaking photos; we have some of these preliminary Tonga volcano photos below. Indeed, volcanoes are a source of fear and awe-inspiring beauty; even as their choking smoke and searing-hot lava decimates cities and cultures, the unparalleled force and macabre elegance with which a volcano erupts is incredible.

In the spirit of the Tonga volcano that has been erupting all week, we've collected some other volcano and lava-inspired innovations below. Some are pragmatic and aim to warn residents of impending doom; others are significantly sillier and more fit for the pot-smoking college set.