changeRibbonFont.py

# Load the Python Standard and DesignScript Libraries
import sys
import clr

clr.AddReference('PresentationCore')
from System.Windows.Media import FontFamily

clr.AddReference('AdWindows')
from Autodesk.Windows import *

# Place your code below this line
ComponentManager.FontSettings.ComponentFontFamily = FontFamily("Comic Sans MS");

# Assign your output to the OUT variable.
OUT = "succesfully changed your ribbon to {0}".format(ComponentManager.FontSettings.ComponentFontFamily)

Need to design font with smiling text and set at at ribbon ))
Thx )))