I want to solder house keys to .....what?

Been collecting soldering equipment and keys. 3 friends get together once a month (2years now) and do art projects. I know whatever we do has to have an armature. I have small lamp shade. What else??? We are dollmakers and used to making armatures, will hangers do? I have this idea for a wire sculpture lady, her skirt is keys soldered together. What help can anyone give me?

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