Snow x anery het amel = 50% snows and 50% anery het amel
Snow x creamsicle = 100% creamsicles het anery (or snowsicle)
Snow x normal = normal 100% het snow
This is assuming there are no hidden hets. A butter and ghost would fit nicely as you already have amel and anery in the mix, so you'd be adding caramel and hypo to your gene pool and be able to produce morphs in the F1.