I purchased from Born Pretty their Colorful Half Round Ring Nail Water Decals. 

The products used:
OPI – My Vampire Is Buff
Born Pretty their Colorful Half Round Ring Nail Water Decals (Y108)
Seche Vite

I decided on a simple design but you can use more than one on a nail or layer them too. These half round colorful rings added a pop of color to my nude polish which I liked a lot. I had no issues with applying the decals. I did skip the instruction part of using a blow dryer since the decals adhered with no issues.  

Water decals are a simply way to add nail art to your manicure, give them try the variety to purchase is astounding.