what is the name of the addon that will allow me to insert symbols like hearts and clubs in wow chat.

you dont need an addon.

put the symbol name in curly brackets {circle}.

I dont know the english symbol names ... just try ;)

Lessthanthree. Have no idea if it actually works anymore but I remember using that for a few weeks a long time ago.

i totally tried that and now i feel so blonde cause i think it was a joke :P .. anyways it didnt work .. please i wanna make cute chat macros !!!

it does work, you just need to know the right names.  If you try [skull] it outputs the actual skull mob icon into chat.  You can only output the icons currently in the game which are skull, cross, moon, diamond, square, triangle circle and star