Thundercracker's optics brightened a bit. If that was what he thought it was . . . huh, maybe he should have the femme search the junkpiles with him more often, if she had a tendency to find things that fast. Handy. He approved.

He shrugged, putting his hand out under it to catch it when - or maybe if - she let it go. "Sure. That might work." He'd have to double check that it was, in fact, a whistle. Or harmonica. Or something Four could use.