I have no idea what Luke was thinking or why he did this to himself, but he did. He was very intense and quiet about it too, that's why he got as far as he did before I noticed what he was doing.
It was wall anchors and screws. After grabbing the nearest camera and snapping a few shots while trying to contain any smiles or laughter, I did take the screws and anchors away and discuss with him that we don't put things in our ears or mouth it is dangerous. Looking back at the pictures though he did look hilarious.
Beau and Anna didn't want to be left out so I snapped a quick shot of each of them too, all ready for bed.