The Bumble Ball
Here's one you may have forgotten about, even though they're still being made today. The Bumble Ball is a motorized toy made popular in the mid-90s that vibrates and bounces around when activated.
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The core of this toy is made from plastic, but the bumpers on the outside are made from a rubber material. This helps with protecting the core and giving the toy the ability to withstand harsh conditions that a child may put it through (such as throwing it).
The bumpers are a cone design, which gives it much needed strength and stability. This is a popular way of implementing stoppers/bumpers throughout a vehicle in points where a high amount of force needs to absorbed (examples: Door and front hood stoppers).