Since Mags seems to have no ill effects from the nuts, Peeta collects bunches of them and fries them by bouncing them off the force field.
Suzanne CollinsI reach for Prim in the twilight, clamp my hand on her leg and pull myself over to her. Her voice remains steady as she croons to Buttercup. "It's all right, baby, it's all right. We'll be OK down there." My mother wraps her arms around us. I allow myself to feel young for a moment and rest my head on her shoulder.
Suzanne Collins