I looked around the web for a good high resolution happy face that I could use for printing smiley T-Shirts, Mousepads, Coffee Mugs and Bumper Stickers. I couldn't find anything really big, so I made this one. The links to the hi-res smileys are near the bottom of this page. See http://cafepress.com/BigHappyFaces for the products.
If you have use for a medium-to-small happy face but don't have the time to make one yourself, here you go. Feel free to pick something up if you enjoy seeing this popular icon on your stuff! Of course, you can also do-it-yourself using the hi-res pics below if you want.
The smileys above are in PNG format with transparency.
For the high resolution happy faces, click on the image file links below: