Here are some fun accessories for the Bat Cave. You can also buy a pack with one character and a vehicle. . . They run about 5.99 for the small set. The bigger car/helicopter/ship set run about 10.99. The kids got those as gifts for Christmas which is what started our bat cave collection. My mom bought the kids the joker house and they love to pull it out with the bat cave. We have multiples of each character (which is good with multiple children and for when friends come over). I have found that a good time to buy accessories is at Easter or Christmas when they bundle a few for stocking/basket stuffers. 
