Ok here is more for a tip for people for who have problems with stuck batteries in their toy cars, clocks, or any other device that uses replaceable dry cell batteries. Just line the bottom of your battery case with some dental floss. Be sure to have enough on both sides to tug the batteries out.
Stuff used in this video:
Lightning McQueen R/C: http://amzn.to/2ySGmfH
Nanch Precision Small Screwdriver Set: http://amzn.to/2AW5CmE
Dental Floss: http://amzn.to/2AVUvKo
AA Batteries : http://amzn.to/2AUG3m5