Anybody know what these are besides Geckos?

I think it is some kind of sweater clip or lapel clip maybe or some other clothing accessory? Please let me know if somebody can tell me what this really is for. Its sterling silver and is marked as such on the reverse side of one of the Geckos. At least that is what I believe they are. I found it out on my latest hunting trip ( hunting for goodies that is ) along with a pair of puffy wired heart dangle type earrings which of course were also sterling silver. I really love the patina sterling silver objects such as these takes on from being hidden away and sheltered from the elements for all these years. I'm not sure about the age but judging from its probable use I would say 1920's to the 30's maybe. I do so love going on "safari" for the many things one can still find such as these Jewelry is my primary item I hunt for when out on a shopping spree for treasure then glass and ceramics then paintings, furniture and the like. Well until my next post, enjoy!