Last week I made my first submission to OpenGameArt:
11 Character Expression Bubbles/Balloons in 64px x 64px Frames.http://opengameart.org/content/npc-expression-emotion-bubbles-project-emotion
Animation Strips like this:
(Sorry it's so fast here)
Some were handmade like Anger and Droplet. Others were Unicode characters taken from Open/Free fonts.
I know they aren't amazing but I think they're satisfactory/usable.
They're free to use if you like them! :D
I designed them for my RPG but they could be used in other game styles I guess.
I just uploaded new versions so my download counters are at 0 again, but I'd had about 30 DLs of the Zips and ~5 each for single file versions over the week. So cool! Haha.