teeth
"Your teeth are like your fingerprint: They are uniquely yours. This is why dental records are sometimes used to identify human remains."
"Teeth are like bones. They are alive. They start forming before you are born and continue to develop until you are an adult."
"Teeth are like a Swiss Army knife. A Swiss Army knife can have lots of tools, like a blade, scissors, and screwdriver. The same thing is true about our teeth."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.