One little girl's love of horse drawings led her family on an incredible journey of human generosity.

Alexus Lasiter, who goes by Lex, has cerebral palsy, a seizure disorder, heart trouble and kidney problems, according to Today.com. A few weeks ago, frequent trips to the hospital had the 7-year-old feeling down. To cheer her up, her mother, Wathena Sievert, decided to combine two of Lex's favorite things -- horses and getting mail. Sievert contacted an art student who participated in a Facebook group that her husband runs. Sievert asked Travis Barker of Lakeland, Florida, if she could pay him to draw a picture of a horse and send it to her daughter, Barker told The Huffington Post via email.Barker offered to do the picture for free, and then recruited about 30 of his friends to do the same, creating the Horses for Lex Facebook page. Over the next few weeks, the Facebook page grew to more than 2,000 likes and people from all over the world decided to join in. continue