Grilled Owl Pellets!

My science table is the outdoor grill with the lid kept down so the backyard squirrels don't line their leaf nests with the pellets. Meanwhile, every time my husband makes a dinner choice, I remind him not to turn on the grill and char the pellets. I am waiting for my friend, Judy, one of my partners in crime concerning all things outdoors, to dissect the large pellet with me. I thought it might be a little much for the preschool to see and they are not sanitized. I guess grilling them might do the job!!!