Popsicles and Oranges for sure.
Oranges for some reason keep me entertained when I'm stoned. I struggle to open them and then the struggle is so completely worth it when I eat them.
Also, your favorite cereal always has a way to kick ass.
The BEST, absolutely best way to enjoy is a bong, your best friends, Halo 2 with two tvs and two xboxes, and a few large pizzas. Best time ever.