I wonder if Kyekyeku is finding it rather offensive that all we
westerners are claiming to know better than he does what the cedi sign
looks like. He says it is different from a cent sign. Let's stop
speculating that he might be wrong and wait for him to provide evidence
that he is correct.
At http://www.mich.com/~kimsuk/pdf/currency.pdf the Ghana currency is named "new cedi" and its symbol appears as a N with the  appearing in capital letter form with an oblique slash and Kyekyeku described.
This web page also has a slashed capital G for the Paraguayan guarani, another symbol not in Unicode.
Oddly the symbol for colon for Costa Rica and El Salvador is here given as capital C rather than the colon sign U+20A1.
I suppose a proper cedi symbol could be theoretically generated in Unicode as <U+0043, U+0338> LATIN LETTER CAPITAL C followed by COMBINING LONG SOLIDUS OVERLAY, producing CÌ . Displaying this well is problematical.
A clunky work-around might be to put a  key on the keyboard which would produce  when unshifted and <U+0043, U+0338> when shifted, allowing the user to chose.
At http://www.tug.org/ftp/historic/fonts/dc-ec/dc-1.3/txsymbol.mf the cedi symbol and the colon sign (U+20A1) â are identified.
Jim Allan
Ì
