Quantum teleportation is a concept of transferring quantum states of matter. Not teleporting matter itself.
To "clone" an object to the destination, you need to have the same material as the object already prepared at the destination. You can teleport the state of the object to the destination (of course, purely talking in theory). Then you may be able to use the information of state of the object to prepare the material at the destiny in the same state. That way, you can teleport an object to the destination. If you want to find a proper "material" for this operation, I don't think there is one suitable for general purpose, because whatever you want to teleport, ideally you have to prepare the same material at the destination -- not another material. If you want to know what material is easier to teleport, the simplest hydrogen atom or molecule would be a good candidate.
However, the teleportation technique researchers have been playing with usually refers to "degrees of freedom" of quantum states. In that sense, you can teleport a spin-1/2 state of a nuclear of a carbon atom in an organic molecule to a spin-1/2 state of a nuclear of a hydrogen atom in another environment. See here, for example. As more degrees of freedom of quantum states joined together, it becomes exponentially harder to implement. This is because the "space" of the full quantum states to fully describe the state of the system increases exponentially as the degree of freedom increases. To measure such a state without destroying the other degrees of freedom will become very hard as well, not to mention to prepare such a complex state in real life. A sad thing is that after measuring the state of the original object, people usually think the state of the original object is destroyed. In other words, you cannot clone a quantum state to another object without destroying it unless you have some pre-knowledge of the state before measuring and teleportation. Most of current teleportation technique implemented in labs are still only working on atomic level, not to a macroscopic object yet. But hopefully new techniques will eventually help us reach something big!
