Here are a ton of FACES! {There are unique icons in past journals, go to them to see nifty stuff > :)}
And yes go ahead and test out icons you like here on this page! Its the best way to know your getting it right.
Remember to summon icon in conversation type :icon(name goes here)plz: {no spaces}
There may be a couple of faces missing from my list, but there is another list by MagicallyBlue http://magicallyblue.deviantart.com/journal/Random-cheese-218425195 that has a bunch too!
~liechtensteinplz (https://www.deviantart.com/liechtensteinplz):iconchinaaruplz::iconhongkongplz::iconberwaldplz::iconhurrplz::iconraegplz::iconraegrapefaceplz::iconfrageplz::iconbadassplz::iconleleleplz