Not sure if this is a good idea or not, as it would require another block id, but I think it would be cool to have another factory type. It could be called a "Planet Seeder" and its fuel could be a huge amount of all the extra terrain and flora blocks we pick up along the way. Once the required amount is reached, a random planet can be spawned in the sector it is in or what not. Just saying, I hate trashing all those blocks when the shops are tired of me pushing it on them for a buck a pop.