You can get the Unicode symbols using the utility called "Character Map" in the Accessories -> System Tools menu on most Windows systems. I would expect that other OSs have a similar utility. Click the "Advanced View" check box on the bottom, make sure you have a font that specifically says that it's a Unicode font and then type in the ID of the Unicode character you are looking for in the "Go to Unicode" box. Or you can just browse through the "Subranges" in the Unicode standard by selecting "Group by" and selecting "Unicode Subrange" and then navigating the additional window that pops up. Alternatively you can search online for the Unicode symbol you want and cut and paste it in.