Here's a glazed/acryllic look 20th Anniversary pin. It has the Sega & 20th logos, with Modern Sonic standing over a TV with classic Sonic. (matches the art & statue for the occaision) this was a prize at the 20th Anniversary event in Joypolis in Japan, if you could answer 10 Sonic…
Here, Sega Saturn Magazine announces a Sonic R story with this rendered Sonic cover. It doesn't look like standard art from the game, and comes with the headline of "It's Show Time!"