Rob couldn't find a bucket after being challenged by Zac Efron so he improvised with a pot of ice and a hose! Whoever he enlisted to do the dumping/spraying wouldn't let it end at that! This might be my favorite ice bucket challenge!!! Chris Pratt's was pretty good to though. - Hemmy

 

Check out Chris' as well: 

 

MORE ALS ICE BUCKET CHALLENGES:

Celebrity Ice Bucket Challenges

Ice Bucket Challenge Fails