When we find caterpillars we like to bring them inside to let them become butterflies before releasing them back into the wild. However, one chrysalis was too small to open up and it appeared dead for months and months. She came out, beautiful and small, during the winter. Since we couldn't release her we fed her gatorade soaked into some cotton. To help her find it we would use something small to unroll her proboscis to help her drink.
Our friends helped raise a young squirrel that was old enough to walk but still very young and hungry. The squirrel's best friend happened to be their 120 lb saint bernard!