Steve Hornsby from Bournemouth said the 3cm diameter balls came raining down late on Thursday afternoon during a hail storm.
He found about a dozen of the balls in his garden. He said: "[They're] difficult to pick up, I had to get a spoon and flick them into a jam jar." [...]
Walking around his garden he found many more blue spheres were scattered across the grass.
He said: "The have an exterior shell with a softer inner but have no smell, aren't sticky and do not melt."
Well, Neatoramanauts, what do you think is the explanation?