Answer:
Car - requires fuel to move on
Balloon - Can go to great heights but easily popped
Sink/Fossit: Seems to keep water contained but easy to let out when interacted with.
Nail - depends on what side you deal with, one doesn't hurt and the other does
Dough (either cookie dough or play dough) - easily shaped
Horn - loud when you press force onto it
Bone - hard and seemingly dead outside, alive inside
Explanation: