Here are some simple icon designs. I like how easy clean they are and each one has a specific opening to it that allows the icon to be a part of the background. I also like how they are all see through and tie in well the background also.
:Gmarellile Flat Icons Personally, I quite these icons. Because I think a nice icon will catch consumer attention. A well begun is half done. Also I think if you can design a good icon, your product would not too bad, lol