The Gaia Bloom - An ancient plant dug up by the sniffer

The Gaia Bloom - This ancient plant, dug up by the sniffer, will allow players to quickly grow structures that they have previously built and copied. 

Through some mechanism, a 3d area/build can be copied onto the seed of this plant. By planting this and bone-mealing it, it will bloom and spread vines that will construct the copied build as long as the required items are present. The larger the build, the more time it will take to generate and the more bonemeal it will require.

I'm also imagining that the required build items can be stored in the seed itself. This could be used for builders who are building repetitive structures, redstoners, as well as anyone who needs to quickly set something up on their travels.