I have a few emblematics. They are a nice change some days and work well with more casual suits. I am not a particular fan of the polo shield emblematics. There are quite a few sources for different types of emblematics. Good luck in your search.
I am not a native Texan, but have come to appreciate cowboy boots. I only wear them occasionally, but find them quite comfortable and not any more hot than other choices of footwear in the summer heat.