Bandwagon is a fallacy where a person's fear of rejection by peers forces them to do something. For example, a person may believe that prejudice jokes are not funny. The group they "hang out" with are openly prejudice. After a racist joke is told, the person laughs in order to not be ostracized.

Slippery slope--  a fallacy that uses the argument of extreme or dire consequences occurring because of one action or choice.  A great example of slippery slope are the DirecTV ads.  The premise is that because one guy gets angry about his cable bill, he eventually ends up in a roadside ditch.

Link to humorous Slippery Slope ad.

Another fallacy is the fallacy of false analogy, comparing two situations which logically do not bear comparison.

"Global warming is just a myth. Scientists have been wrong before like they were when they claimed the sun revolved around the earth." 

One of the major fallacies is the post hoc ergo propter hoc fallacy.  This is the fallacy in which people believe that one thing caused another simply because it came first.  This can lead to people thinking, for example, that a given president caused an economic event (good or bad) simply because he was elected before it happened.

You should use Pantene Pro-V, because Jennifer Lopez says it makes her hair thick and wavy.  (Appeal to Authority)

All of the students at your school have an iPad, so you should get one too! (Ad Populum)

I could not finish my essay by the due date, because my baby kitten was sick and I had to take her to the vet.  Then on the way there, my car broke down and had to be towed.  (Appeal to pity)