Eggs? Or what?
Looks like one of the Bird's Nest fungi (e.g. Cyathus spp.). They are harmless. A natural member of the decomposer community that is breaking down your wood chip mulch. Using a different type of mulch, keeping it drier, or occasional raking would disturb the fungus and discourage it from growing there. Here are a couple of extension article if you'd like to read more about it.