Found these tiny cups filled with little grey ‘eggs’ growing in the mulch. They are smaller than a dime. Anyone know what they are?

the species and age of the fungus. The peridioles, or ‘eggs,’ inside are usually grey, black, or white and are typically around 1-2 mm in size.

The cups are often found in clusters and are usually seen in damp, shaded areas. They have a smooth or slightly hairy texture and are quite durable, holding their shape even in adverse weather conditions.