is there any way to remove an app icon(especially stickies) on mac's application switcher (cmd+tab menu)?

On Mac's application switcher I want to hide some applications such as Stickies. I always use Stickies, it is really useful for me thats why it's always running. but i m really fed up with it on command-tab. i want to get rid of it

Is there a way to do within altering any settings in macbook or using any third party software?

I tried the solution at "How can i remove an app icon on mac's application switcher (cmd+tab menu)?" . But it doesnot work maybe because of os x yosemite.