A Christmas tree. Because they're lit.
Prism (Note: I made this joke up. Sorry if this little note refracts from the humour.)
You can sleep with a light on.
A navi-gator!
A swallow.
Air.
It turns Noooo! Noooo! Noooo!......to..... Mmmmm, Mmmmm, Mmmmm.
The balls are for decoration!
Treeson.
Falafel and hummus.