Hi,
Yes, shining color reflexes/shadings can be obtained also on business outdoor signs. You can print your sign in full colors (as you can see it how it looks now) or instead of multiple colors you can use just 2 ( the shining effect can be obtained by the natural light because there are special types of ink with metallic or reflective look effect etc.) There are different options which can be recommended by professional print shops from your area, according their capacity and their equipment's quality.
Each logo can be adapted to its specific use, either you use one or multiple colors, and the result will differ according the used materials (paper, wood, glass, metal, plastic, embroidered clothes, pc monitor etc.)
Regards,
Ake