Just in case you want to celebrate the day (he would really hate that), here are a few links to make it easier:
Find printable Oscar the Grouch coloring sheets at MyColoringPages.com.
Play Oscar themed games, watch videos, or find more printables, at Oscar's own special page, on the Sesame Street site.
Make a Grouch-in-a-Can pompom craft with Kaboose.
DLTK has a printable template for an Oscar, toilet paper tube craft.
CraftyNoodle has instructions for an easy Oscar, paper mask craft.
Family Fun has an idea for a Milk Jug Grouch House.
There's a recipe for Oscar the Grouch Smoothies (using kale!) at Along the Daisy Path.
And of course, there are always the ever popular, Grouch Cupcakes, like these from justjennrecipes.com.
As for us, we're going out to the garden, to play with worms.
Happy birthday Oscar. We hope you have a marvelously, awful, bad day!
It's great to be a homeschooler.