Oh, I hadn't noticed you had said mouse fuzzy, I just assumed they were rats. Absolutely go bigger, mice fuzzies are basically nothing. Idk if that will help with her refusing the food but will be more substantial of a meal for her. And maybe try the hot water method instead of the hairdryer? That way the rodent will not be dried up and will keep its smell better. I imagine blowdrying the animal would whisk away a lot of the scent on it, whereas keeping it in a sealed baggie will make it smell very strongly. That may help, not sure, but it's worth a shot anyway I think.