I had never heard of a thimbleberry before seeing this polish, which is a little surprising to me considering they grow here in New England. Also, it looks like the much more familiar raspberry or a blackberry. I Googled it because I wanted to see how aptly it was named. Take a look at this photo-- I think it's a good match! I'm generally not a huge fan of corals-- but I did like this one. It's an odd color, and it changes a lot depending on the light. In the first photo, in natural light, it is a vibrant coral-orange (corange?). In the flash photo, it's more on the salmon-pink side. The formula for this was pretty good. It needed three coats for opacity. I think this is a nice, warm color for the transitional period between the end of summer and the beginning of fall.