I have found the clone command, and it is awesome. Now I would like to put that command in something like a spawn egg so I can toss one down and build multiple houses for my personal village at my home base. How on earth do i do that?!?!

I am fairly new to minecraft- I would like to add this feature for my own use (single player, survival mode) and still be able to get achievements. Is this possible or will I have to have cheats enabled? Can I build out some of these things in a creative world then use that modified version (with my new spawn items) as the seed for another new world where I can still earn achievements? Or do they even matter at all? Currently I am swapping between creative and survival to get the hang of some things, but I am sourcing nearly all resources on my own (I did grab a couple of potions of breathing a time or two).