POTD - Sonic Toys on the Fridge [opposites attract]

We collect magnets and as a result, our refrigerator serves as our display case for them. The magnets date back to 1992 or earlier (there are several from our honeymoon in Hawaii).
These are a part of our collection - magnet ramp toys from a couple Sonic Wacky Packs. A rimmed wheel is set on the rails and roll down into a collection bucket. The kids are constantly re-configuring the ramps and trying to get the wheel into the bucket.