Great tip! You don't need to copy to the clipboard. I prefer not to replace the current clipboard contents in case I need them. Remove the copy to clipboard action and set the "Pass input" option of the "Run Shell Script" action to "to stdin". Then use this simple script:

count=($(wc))
osascript -e "display notification \"${count[0]} Lines, ${count[2]} Characters\" with title \"Word Count\" subtitle \"${count[1]} Words\""

Note I also use "display notification" so that a (Yosemite/Mavericks) notification appears in the upper right of the screen, then fades away. This way you don't have to click it away. I put the word count in the subtitle so it's bold and appears first.