Broken arm...

Remember on Friday afternoon how we were going to the park?  At the park, oNe went flying off her scooter and broke her arm.  I knew instantly it was broken from her cries.  It's a "good break" and should heal quickly.  This site (and many others) say about 3 weeks of a cast.  I am SO hoping it's only 3 weeks.  I am so hoping we can get a waterproof cast.  oNe is very sad.