We've had a new development today. The problem is that I can't decide if its an extension of belly button exploration or he's imitating Aaron who often tries to hook things to the side of his shorts to act as a scabbard.
Look at the satisfaction on his face when he finally got it right.
He was having so much fun with that toy xylophone until he discovered this other use for the sticks. *sigh* At least I'll know to look whenever there isn't any 'music' happening.