First, you don't state where you are and this is a rather global site. There are people from Canada, US, and many other countries here so "mutual funds" that mean one thing to you may be a bit different for someone in a foreign country for one point. Thanks for stating that point in a tag.
Second, mutual funds are merely a type of investment vehicle, there is something to be said for what is in the fund which could be an investment company, trust or a few other possibilities. Within North America there are money market mutual funds, bond mutual funds, stock mutual funds, mutual funds of other mutual funds and funds that are a combination of any and all of the former choices. Thus, something like a money market mutual fund would be low risk but quite likely low return as well. Short-term bond funds would bring up the risk a tick though this depends on how you handle the volatility of the fund's NAV changing. There is also something to be said for open-end, ETF and closed-end funds that are a few types to consider as well.
Third, taxes are something not even mentioned here which could impact which kinds of funds make sense as some funds may invest in instruments with favorable tax-treatment.
Aside from funds, I'd look at CDs and Treasuries would be my suggestion. With a rather short time frame, stocks could be quite dangerous to my mind.
I'd only suggest stocks if you are investing for at least 5 years. In 2 years there is a lot that can happen with stocks where if you look at history there was a record of stocks going down about 1 in every 4 years on average. Something to consider is what kind of downside would you accept here? Are you OK if what you save gets cut in half? This is what can happen with some growth funds in the short-term which is what a 2 year time horizon looks like. If you do with a stock mutual fund, it would be a gamble to my mind. Don't forget that if the fund goes down 10% and then comes up 10%, you're still down 1% since the down will take more.