I have a 10 year old boy who is home schooling for the first year. He loves to create his own things out of Legos, mine craft, nature, animals.... He is not a big writer but I think he would enjoy short communication with a distant friend his age.
My daughter is 8 years old and in public school but she would LOVE a pen pal. She is into games, animals, reading, reading and more reading, crafts, learning languages, HGTV shows and pretty much anything you can think of. She just loves to learn and be in touch. Texas Mama I think she may be a match for your girl!
Rebecca