It depends how long the project length is. Anyone can give you a whole list of blue chips which will give you a consistent return; however, if you are only going to be tracking over a few months, I would go for riskier stuff like defense companies and technology firms. You may lose your shirt, but it is the quickiest way to turn a profit in such a short time span. Watch the news for potential events which could learn to large government or civilian contracts.
When we did this thing in high school, some people were making a 100%-200% return but this was also right after the terrorist attacks. Defense stocks skyrocketed and the airline companies could be bought for next to nothing then doubled their value in about a month.