These are examples of the stained glass shards found during my last dig. The stained glass pieces are from the Wissmach Glass Co. which is in the same town as Marble King. We always find the stained glass mixed with the marbles.
You could pick it up all day long, but the marbles come first. I already have a 5 gallon bucket full, so that would keep me busy for a while. I am going to cobble some out for pendants and maybe windchimes like duff said.