Happiest Page on the Internet

Let's create a haven on the Internet where people can go to feel uplifted and joyful. What are the best, happiest things you can think of? I'll start. Unicorns, obvs. Rainbows. Cupcakes. Children under 5. Drew Barrymore.

Only happy comments, videos, and pictures are allowed on this page, please, and they must be posted with joy in your heart, otherwise it will be obvious to everyone that you're only pretending. All sarcasm will be taken literally. Hooray!