Would she like a pen pal?
My 5.5 year old had the same injury--broken arm on the monkey bars! She was the first official one of the season according to the hospital's orthopedic department! Hers was on 3/25. She had to have surgery to insert a screw in her elbow. She was house bound for 2 weeks until we got her cast on because I couldn't get a good fit in her carseat.
For those 2 weeks, we hid presents around the house. Every day she got to open one. It was all things to keep her busy while stuck inside--board games, indoor basketball, new books, etc. She loved it. We homeschool so I also reached out to our network of friends who asked if we needed anything--I said just letters and notes for DD. She got so much mail and was so thrilled.
She got her red cast on 4/9, and is scheduled for a re-check on 5/19. It's the day the pool opens so we are hoping that it comes off, but I'm not holding my breath.
The worst is that she fell the other day and couldn't catch herself and ended up needing stitches for a puncture wound on her temple. This broken bone is haunting us now!
She is disappointed that she had to stop all her favorite activities--gymnastics, yoga, horseback riding. But, it has forced us to find new ones. The cast was a novelty at first, but now she is mostly just annoyed with it because it's limiting her normally very active lifestyle.
I've tracked down just about every book I can about broken bones. I think our favorite is--Kate Larkin, Bone Expert.
Seriously, I know DD would love to "talk" to another girlie going through the same thing. She's fairly precocious and most of her closest friends are 6-8 yo. girls.
I wish I had someone to talk to when this first happened... finding clothing that would work over the splint/sling was a nightmare. It's been much better with the cast. But, it's a full arm cast and it's been such a struggle. We got a waterproof cover for it. Our doc's office doesn't offer the waterproof ones at all; they say that they aren't truly as effective as they claim.
Hugs to your girlie,