Build your own with common items found around the house. No rocket science involved.
Note: This is based on the real Magic 8 Ball product. Not to be used for games of chance or fair trade where restricted by law.
Extreme crafting involved, papercuts are a hazard, peeling glue from fingers can hurt, and no running with scissors.
Step 1: Crafty supplies
A couple of corrugated cardboard boxes to salvage cardboard material
referred to as "card" by our metric using friends
An inflatable beach ball (20in round), use one of those inflatable yoga exercise balls for a really giant Magic 8 Ball.
plastic wrap to protect the ball when used as a form
lots of glue( I use carpenters glue for its better tack and regular white glue for the papier mache solution)
masking tape to help clamp the cardboard
60lb thin paper cardstock (you can use any scrap paper for the papier mache - I use this stuff to reduce the need for so many layers and sets up faster)
For the Magic answer module:
An empty clear glass jar with lid (make sure it seals watertight when turned upside down)
A chunk of insoluble foam to carve out for the die (I used some packaging foam I had lying around. You can of course use something else that will survive submerged in water and floats)
water (real one is colored alcohol as the liquid)
a few drops of blue food coloring
black and white paint
electrical or duct tape to seal and secure the jar