Sure, Mary. If you're looking for comic book images, there's a large selection
here and
here of Superman wallpapers. They include a decent number of pictures of Superman punching things or looking like he's punching things. That page also has Kryptonite in chain form and in glowing blob form.
From the show, we have:
I don't suppose bar form would be particularly helpful...
How do you feel about red?
Oh, and there's this prop from somewhere or other...
Any of that work, or should I keep digging?
Paul