I have a S&W 629-6 44 mag and a Ruger Redhawk 44 mag both fitted with Hogue fancy wood grips. I thought they would look better with the appropriate grip medallions, so I bought a red Ruger medallion and a blue/white S&W medallion and installed them. Now they look more 'factory like'.
Nice job! Just so happens I bought a lot of smith related stuff off eBay and there were about 8 pair of never used old style emblems in a ziplock bag. Me thinks you gavel e me an idea, keep up the good work!