Courtesy of Detective Comics #352:
In this case, it's not that I don't think he can do it, I'm just not sure why he would. He's got guys shooting at him and rather than just send elongated fists all around the room, he takes the time to make a bow out of one arm? I really don't see the benefit here.
And don't tell me he couldn't just launch the fist. A few panels later, he is attacking people with elongated hair:
I like Ralph, I really do. But I think people came up with these things forty years ago just so I would find them and be royally annoyed by how preposterous they are.
And, of course, this leads to elongated toes wrapping around people:
....which, by the way, is totally gross.
Sooner or later, he's going to run out of body parts and start resorting to what we're all thinking. Comics Code be danged, there are only so many things he can stretch before we start going with the obvious. You're just as frightened of an uncertain future as I. Admit it.
See you Monday!