lost Christmas money for my kids

Hello everyone, I hoping and praying someone is generous enough to open your hearts and help anyway possible. I'm a single mother of 3 beautiful girls. I stressed for over a month on how I was going to provide Christmas for my girls.... Finally I got a loan of $600 to get them a decent Christmas. Well today I went to pick up my daughter from school forgetting I had the money on my lap and it had to have fallen on the ground when I got out the car. When I realized what had happend I returned to the school but the money was gone and nobody turned in into the school or police station. That was every dime I had. It breaks my heard so bad that it was taken in a blink of an eye and nobody had the heart to turn it in. Please if anyone can help it will be greatly appreciated. My girls deserve a good Christmas... They have been trough a lot this year already. Please and thanks to everyone!