Here are some things Sebastien loves:
pancakes
banana pancakes
blueberry pancakes
banana-blueberry pancakes
(seriously...the kid goes nuts for pancakes)
brushing his teeth
laying his head on the kitties
"Doggies" by Sandra Boynton
Lids - he's really good at screwing them on and off
did I mention pancakes?
the corners of his blanket
flirting with ladies who think he's cute
powder on his butt
opening and closing doors
Clifford the Big Red Dog
Ducks

Also, Sebastien already knows how to spend mom's and dad's money. Today I had my debit card in my hand (getting him pancakes), and he took it right out of my hand and gave it to the cashier. I've had him "help" me give it to cashiers a couple times before, but it's a skill he seems to have a natural knack for.