Both Amazon and Walmart are offering the iconic 75902 The Mystery Machine form the Scooby-Doo line for 30% off at just $20.99. To take advantage of this deal from Amazon, you’ll need to be a Prime member, otherwise Walmart offers free delivery on orders over $50 or free in-store pick-up with no minimum. You get three out of the five meddlin’ kids in this set: Fred, Shaggy, and Scoobs. You’ll need to get the 75904 Mystery Mansion (which is on sale at 16% off on Amazon) to get Velma and Daphne in one fell swoop. That and the Mystery Machine set is like having one whole episode in your hands.