I don't really know anyone so I'll just dare some people I've seen posting on here recently. I don't know what nature of dares you've already done so sorry if it's similar or too boring ;P
~Dreamer~: Find Brad Pitt and stalk him wherever he goes.
dolphin: Bring some Barbie dolls to life and see them interact with one another.
StephL: Take over President Obama’s body, then breathe in helium and give a speech.
Anyone: Go into the future, and buy a recently-released album. What's on it???