Weird little egg type things?

Hi,
Does anyone have any idea as to what these weird little grey balls/ egg type things are? They keep appearing in little clusters on my lawn, and in a bit of a lump here on one of the borders?
I am worried that they may be poisonous/ diseased?
Hope you can help!
0
Posts
Answered here
http://www.gardenersworld.com/forum/problem-solving/what-are-these-unidentified-objects/81777.html
Dalek eggs....beware