ohhhhhhhhhhhh......I see

You'll need to make sure that you have a stable place to hold the corals during their journey, and investing in some ammonia buffer might be a good idea. If you plan to keep them in one container, I suggest you use an airstone. Temperature is also a consideration, as small quantities of water heat up quickly, so it might be a good idea to keep them out of direct sunlight. Only take small pieces, too....larger bits find it harder to survive the journey. As for starfish.....I'd say the same, although I have little experience in that area. I live around an hour away from where I sometimes collect, and that works for me! Good luck!