Info 2 [Q] Stock emoticon 'hidden' list?

Was just wondering if anyone know of any 'secret/hidden' codes for emoticons on stock?
I accidentally found a musical note emoticon by typing in -8 & wondered if there are any others? I know the symbols list on stock doesn't show all as I have found ones from other users' rooted devices like : - ) ) (without the spaces!)

Would be interesting to see!