Alyson Hannigan's always been into Halloween. Combine that with the fact that she has a plethora of epic props to decorate her own home with and she might just be up for the coolest mom of the year award.The 46-year-old actress who played Buffy's witch bestie, Willow Rosenberg, on the hit Joss Whedon show for all seven seasons, opened up about using the props to deck her Halloween halls. «I got a lot of stuff from so that is a lot of my Halloween decorations too.