Here are most of my hats donated in 2012, in my ravelry projects folder.
Here are 42 hats, just donated yesterday!
Here are the hats with the scarf ties... I hit up charity shops and friends and family for the scarf donations... PATTERN HERE
The Soft Seed Stitch Hat
Two Slouchy Hats
(sorry, I don't remember where I got the pattern)
The Shallow Seas Beanie
Hat with(out) a Bow
Fourth Avenue Slouchy Hat
Puff Stitch hat
(Very loosely based on THIS PATTERN)
Candy Puffs Beanie
10 Skater Beanies
The Durango Hat
(note that the pattern link goes back to the web archive, with no pictures. for pictures, I would try the ravelry page.)
Seed Stitch Chemo Hat
Miscellaneous Chemo Sleep Caps with different edgings
Sarah Arnold's Divine Hat
Slouchy Diagonal Chemo Cap
I think this is my favorite - though it looks a bit misshapen here, it's not, really. Fits great!PATTERN HERE
Now I am off to start the 2013 caps! I think this year I will shoot for 100 donated hats...