I got this one in an email, but it is also available from the MyPoints website.

On Earn Points -> Business Center, there is a box for FreeBizMag. You get 50 MyPoints for filling out a quick profile to see if you qualify for any free business magazines.

I filled out "Other Industry"/"Unemployed", "Other Function/Student", "Non-Supervisory/Student" and managed to not qualify for any magazines.

It says that "MyPoints will award you 50 Points for simply attempting to qualify for free business magazines", so presumably I'll get the 50 points even though I didn't "attempt" very hard.