Whimsical wee vintage glass animal brooch pair

Neither of these bright pieces is signed but they bring to mind designs like Coro's Menagerie series from the late 40s.From the backs, I would say they were made at different times or perhaps by different designers.The bunny measures about 1-3/8" across, while the small dog (or cat) is about 1-1/4". They are in very good shape, with the smaller having its tail in frosted, rather than clear, glass - not sure if that means it was replaced.