Doing a part-time job makes your winter holiday meaningful. Some common jobs are waiter for restaurant or hotel, passing out leaflets and putting up posters and volunteer work, etc. As a waiter or some like this, we have to work hard and spend much time. Volunteer work is of great meaning for job hunting in the future, but for students from poor families, maybe we can't earn much from it.
Here I recommend playing MMORPG games as part-time job. Many students are addicted to online games and are masters at WoW. This job is interesting because you can experience excitement of adventures and doing quests to building sense of achievement. As for some lazy guys, you don't need to work hard and gain cool feelings from playing. Selling WoW or runescape accounts is a intensively popular way for young adult to earn money since some players are rookies in games. Moreover, many people run company to sell runescape accounts. Playing MMOG combines entertainment with work and build promising career prospects. It is worth having try. There are numerous cheap runescape accounts for you to level up and make money to donate to those who need good health care.