tougher led throwies?

Hi, i want to make led throwies more tough. By that i mean that i want to be able to throw them on cement, without breaking at all. Iv been tryin to put them in a plastic container, but it hasnt worked. So if anyone has an idea to make them tougher, and maybe even waterproof, let me know!!!!!!!!
                                                                   PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Re-design8 years ago
Encase them in clear silicon.  THat would make them almost indestructable.
sci4me (author)  Re-design8 years ago
nice idea. thnkx!