Who steals?

So I haven't noticed anything missing lately, though today I realized that a pair of dragonfly earrings I'd made is gone. They were to give people an idea of what to make with these little brass wings that are in the store, but someone thought they were made specifically for them. To take for free. They were wrong. Just because something doesn't have a price tag on it means you can have it? No. I hope the stealer is karmicly punished.