Money Market Fund invests your money in Fixed income instruments such as:
Treasury Bonds,
Treasury Bills,
Bank notes
(CDs,Municipal bonds etc)
They are the most stable of the Unit Trusts investments because they guarantee you a positive return which is not true for balanced or equity funds.
Zimele has a good fund manager
I would recommend either Zimele or ICEA for money market funds.
Though the returns are stable; they are much lower than the inflation rates so you actual return will be negative if you take inflation into consideration.
If you have funds and you want alternative means of investment email me and I will provide some information.