Ice Fox and Ice Golem

So, there's a lot of mobs and stuff I'd add into Minecraft but most of them are mobs to make ice biomes less boring, you know you the ones with ice spikes. And below is a cool list of them.

Ice Foxes would bring the first ever different variation of foxes. They will behave like foxes but there's a feature that will make it cooler (Pun intended). If it walks into a desert and any other biome but the Dappled Forest, it will become a normal fox, cool right?!

Ice Golems would be a snow golem but way cooler and honestly less weak. Ice golems would be built (and can only be built) with an ice cross like an Iron Golem but ice and a watermelon as a head. He has an ice projectile and a strong melee attack that stuns monsters!