Protection for laptop while in use?

We have a three year old and an 18 month old who love to watch videos on our laptop. The laptop has already taken a few tumbles but thankfully is ok except for a few dents.... Does anyone know of a product that can go on the laptop when in use to protect it from falls? I was thinking something similar to silicone/leather cases for phones but can't find anything online. I know we're taking a risk letting the kids play with it at all, so anything that will at least cushion a potential fall would be extremely helpful.