Concrete Broach, Remains of the moon

I made a broach in the image of unknown ore and ooparts in there. As a pin to keep rough-hewn woolen knit, a muffler and a stall, how about as one point on a canvas place and a leather bag, a hat? Color scheme : gray, black, Pearl Size: vertical 5 × width 8 × thickness 2 cm (excluding metal fittings) Weight: Approximately 43 g Material: Concrete, Kilt pin(brass), Plastic pearl Because of the weight, it is not suitable for thin cloth. The damage to cloth will be reduced by stabbing a pin like ordinary sewing, and keeping it. lt is made by the same mold, but coloring, bubbles, chips and etc are somewhat different depending on individuals. It's a rather thick pin, so the thin material and the material filled with a stitch are sometimes pierced, so please accept it. It is inferior in strength compared with plastics. Please acknowledge that there is a risk of cracking if it gives a strong shock.