The look on their faces was priceless when they put their hand in the water and felt "something" but could not see it! After everyone had felt the "poop", we drained the container and "voila", a whole tub full of these clear, slippery, slimy, bumpy, wet, spheres (all their words, except sphere which was new to them today). They were just water beads! We poured some beads into giant tubs for the kids to play with for a while. Sorry, another no pic. It was just so exciting!
Then we put the beads back in the original container and I told them that the ghost had left us a message. When they could not find the message, I poured water into the container and magic happened! The ghost appeared under the water beads with a message that said "BOO!"