I've found the perfect replacement for the sanity chits : http://www.boardgamegeek.com/image/234068

"Mmm, Brains" comes with 50 plastic brains!

Does anyone know where I can get little plastic hearts to use as stamina tokens :-)

Closest girly-store with a lot of glitter and jewlery might have something like this.. if you can stand the fact to enter one of these..
http://image1.etsy.com/il_430xN.27482665.jpg

More seriously you can purchase these off http://www.litkoaero.com/ ..
http://www.litkoaero.com/Merchant2/graphics/00000001/TS100-Alt1.jpg

Excellent suggestions! I have two young daughters, so being dragged into the 'girly' stores is a fairly normal experience for me :-)

Thanks!