Creek Worms

Looking for some of them old electric blue worms w/ a white or pearl tail for my grandfather. He swears by them in the creek that runs behind his property. Used to see buckets of 'em @ all the fishing shows and big bags in some of the tackle shops, but ever since he said something about wanting some of them old things, I haven't been able to find them for him. Anywhere from 4-7 inch size would be fine. Will pay or possibly trade for 'em or if anyone knows of anybody carrying them please let me know. Thanks for any help, and oh yeah, GREAT BOARD IDEA GUYS!