The NaNoWriMo site has this "Dare Machine" which is basically just a button you push and it gives you a random writing prompt every time. I can't believe how cliche some of these suggestions are though... xDD
"Give your protagonist an evil twin."
"Include a dream that foreshadows something."
Most of them are just really random and silly though. xD
"Include a bowl of talking Jello."
"Have your villain and hero engage in an epic food fight."
"Your characters' world has been taken over by llamas!"
And random things that would probably just kill a book, like
"Include as many similes as you can in the next chapter."
What the heck. xD
"Antlers. Antlers are good."
I'm going to make a character with antlers now.
"Give your main character a magical toothbrush."
HAHAHAHAHHAHAHAHHAHAHAHAHAHAH I GOT 2,000 WORDS TODAY
On the 1st and the 2nd I only got 1,000. bUT NOW I GOT 4,000 TOTAL. HAHHAHAH
I'M COLD AND I'M GOING TO DIE.
AND I DON'T KNOW HOW TO TYPE IN AN AUSTRALIAN ACCENT.
MY LIFE IS CLEARLY FALLING DOWN AROUND ME.