Like regular chests. But with fancy gold bits attached for no reason. To make you REALLY curious as to what is inside them.
Okay, so for the left ones I couldn't figure out how to get the top bit to look like a curve. It just looks flat. Bah. I removed the hat thing and applied some shading and it looks nice. I guess. I also realised that the holdy fancy design thing should be wider than the chest itself, or at least, stick out. So that's what the bottom image is for.