Customizable emojis for CSAT rating

Possibility to change the emojis to our own emojis or picture files. Instead of emojis, some users even would like to change it to a customizable text or at least different options for this (could also be numeral, for example). 

We would like to be able to use our own emojis, related to our product (in our case, they would be chess move evaluations consistent with our computer analysis evaluations of chess games).