Broken Glass

Breaking glass will give you a new block called broken glass. Would only work with planes. Similar to the mud blocks that need an extra step to be created, you have to set glass down and break it. Then you collect broken glass that you can use to make buildings look old and in ruin. You could also have a by product of glass shards that can be crafted into powdered glass and be remade into glass blocks. Though it wouldn't make as much glass as you had before. Would make it easier to recycle glass if you don't have silk touch or sheers, but also gives a consequence if someone would try to exploit it. Broken glass would look like a broken rod if left on its own. And would stick to one side of a block if it had only one block to connect to. If placed between four blocks like a normal plane, it will stick to the corner it was placed with. Similar to how you place a door or stairs.