My friend @natalunasans has anomial aphasia [or, as she says, “Help — I lost my nouns!”], so the labels for things come slowly to her. As a result, she often creates wonderfully poetic circumlocutions. Here are some of my favorites:
Goo + goo = thing. Two-part sculpting epoxy.
A sound looker. You know, for babies. Ultrasound.
Free things that aren’t real. Free digital models, textures, morphs, and other assets for creating CGI art.