Get the ball rolling

Brief Definition: 
Get something going.
Further Explanation: 
This idiom developed out of the relationship between balls and sports games. Many times game play begins once the ball is in motion.
Examples: 
Ok, team, I’ll get the ball rolling. My idea is to …
Anne got the ball rolling by donating $1000 to start the fund.
Idiom Ratings
Popularity (Scale 1 to 5): 
4
Formality (Scale 1 to 5): 
5