Adding video and audio icons

i’m currenty designing an internet site . in Joomla, and i wish to know how i can easily add video and also audio icons to a write-up that has one of the two if possibly not both items imbedded. The icons should appear from the same area because other pdf, mail and print symbols. It may often be done by maybe replicating the program code and removing the function in the other icons previously available but where to find the code becomes the following question.