You can only breed pokemon, not items. Items aren't alive!
Chat with our AI personalities
There are a number of Pokemon that can be bred in the Emerald version of the game. These include Mew and Pichu. The Pokemon must be in the same class and there must be a male and female to breed.
sudowoodo
That is really quite simple. All you have to do is breed a Hitmonchan or a Hitmonlee in Pokemon FireRed or LeafGreen and trade it on to Pokemon Emerald.
dont care
I'm sorry to say that there is no possible way to breed Rayquaza in any Pokemon game on the planet. :(