Some few random thought ideas:
Change every single light bulb in the house to pink ones. It's breast cancer awareness month so it should be fairly easy to find those.
Try to get the 100watt ones.
Decorate the whole house for Christmas, go totally overboard. You need at least 100 plastic candy canes, santa sled, TONS of lights, trees etc...
use tons of these on the windows:
http://ecx.images-amazon.com/i...VNAL._SL500_AA280_.gif
Clear tape every single phone/ethernet cord
Put broken eggs in the mailbox
Cover the entire roof with styrofoam plates (preferably in some really ugly color, or mix of colors)
Get some empty cleaned paint cans and scatter them near/on the driveway. Find some easy to clean substance to look like paint just got thrown all over, make sure to get the house too. Not sure what you could use though... something that sticks to some degree but can be hosed down.