This survey is going to help create a chart of what buildings produce which shards. Each shop makes two products, and in order to ascertain the connections between the shards and their origins, I'm asking what products you've seen deliver which shards. You can take it as many times as you like as you build new buildings and find more shards. The more input we get here, the better. If you have any problems, message wrathlet on reddit.
Thanks for the input!