Hi everyone! I'm brand new to the world of succulents and have received these as a gift. I don't know what kind of succulents they are and would appreciate any and all help in ID-ing them, as I want to provide the best possible care for them. Just a bit more information, in case it's not evident from my pix: the first plant is super tiny and rock hard. The "branches" are about half the width of a pencil. The second plant spreads a bit... it was from a large "bush" of sorts with lots of brown stems. The third has lots of tiny, soft whiskers or hairs on it. Thanks!