DO NOT hit fungo's at him as a punishment. He wears one of the chin and you can get sued and accused of child endangerment.
We have a large tire tractor that we use for our workouts. When I want to discipline my players I let them spend some time flipping tires.
In the situation you stated you could get creative. Have him make 2 columns on a piece of paper. Column 1: Things he did to aide in the loss. Column 2: Things the team did to aide in the loss. Have him take that are write an essay on what was the bigger factor in the loss.
I normally start with a reflection process like mentioned. When that does not get my point across, the Tractor Tire normally gets my message across.