I LOVE PINTEREST!
My niece, Heather, finds a lot of great ideas so I repin her often. One of the sites she found took me to FLICKR, which took me to mslil65's great lunch box ideas.
I don't know who this lady is or how to email her, but, mslil65's photstream has amazing kids lunch ideas.
I can't put her photos here as downloading was disabled, but you have to see her ideas.