Did some based on the ones we have now, this is just the top row, I'll look into the others later:

(BTW Panda, the rolleyes one is shown twise in your post.) - Fixed, thanks - PandaSeems people took a liking to the poor AA. I was just playing around, but I guess if you want to keep it that way, sure. I made these to fit that "style", but I can rework them with some better AA if people feel this is what they want. Some are still a bit WIP, but I wanted to show the general style I intended to use first. Some will of course be animated.
I guess the emotes are in a somewhat tricky angle to AA, and the palette (taken from the originals) isn't the best suited for it, but I gave it a shot:

The middle one is the closest I've got so far, but it might require some extra tinkering.