She squinted at him. "We could do that," she said. "Or, we could do the hands." She lifted her own and wiggled her fingers at him. "Look at the joints!"
"The hands could. I mean, they may have a lot of bones, but it shouldn't be too hard." He leaned back.
"I'm into this," she said, nodding. She quickly sketched out the rough bone structure, noting the relative lengths. "I mean, it shouldn't take too long."
She frowned, looking down at her own hand. "We need to figure out what material we're going to build it out of," she said thoughtfully. "I can work pretty well with wood."
She paused for a moment, tapping the table thoughtfully. "If we inserted some plastic," she began thoughtfully, "and molded the fingers around it, we could get a flexible but durable tendon."
"Thank you," she said distractedly. "We also have to write a paper." She tore a sheet out from her notebook and jotted down an address. "Could you meet me here after school to work on it?"
"Mmhm," she said casually, jotting down some more notes on the diagram of the hand. "My father has a bunch of clay, I think. We can just use that."