Alternative nick Ⓓⓔⓝⓝⓘⓢ

You know the feeling, you want to choose a screen-name like "Dennis" and surprise, surprise it is used by someone else.
Why not try the circled letters? On your PC go to Start/All programs/Accessories/System Tools -> Character Map. Choose the font "MS Gothic", scroll the characters down until you see all the circled letters. Double click on them until you have your desired name. When finished click the "Copy" button and paste (Ctrl + V) it whereever you want it.