I ran across a thread that had a useful capx for this kind of thing a long time ago.
dropbox.com/s jd45z6qq6a402js/touchsticktut.capx?dl=0
This is probably the best way to create touchsticks (even though there are other ways). If you have any questions about the capx feel free to ask.
EDIT: sorry, the website won't let me post urls until I reach 500 rep points... I split up the link into two parts so you can just combine them to reach the dropbox file. (there is a gap between /s/ and jd in the link)