I get bored with the default bullets style. I found out there are many other styles we can choose for our bullets. From Lyx, just go to menu Documents – Settings…, and choose the Bullets section.

If you don’t use LyX, here the TeX code, dont forget to usepackage pifont.sty to make this code work on your documents :
\renewcommand{\labelitemi}{\ding{43}}

or, if you only want to change one list (not for the whole document), try this one:

\begin{dinglist}{51}
\item The first item
\item The second item
\item The third etc \ldots
\end{dinglist}

You can see the documentation here. Or look at this table (click to enlarge image)