I've been using chili peppers (peri, shishito, ancho, ...) for my devices for the last few years. Many years before that, I was using named swords (notung, glamdring, sting, etc).

Back in college my boss named a sun workstation lab with aleutian islands, and another after indonesian islands. (Some of those were fun to remember, there was an umnak and an unimak.) The servers were named after seas and oceans. We tried to name a new lab of windows machines after bugs, but the department nixed that.