I made strap keychains with resin. The colors are pink and yellow-green. Each one has a lobster clasp, so you can remove it and use it as a charm. I make each one carefully, but as these are handmade by an amateur, there may be some air bubbles, unevenness, or resin overflow. They are not as durable as manufactured products, so please refrain from purchasing if you are concerned or if you are looking for perfection. Please refrain from purchasing if you have a resin allergy.