Unknown Species 1

Unknown Species 1

Observation - Unknown Species 1. Description: These fragile structures, 25 and 45mm diameter, hung bell-like on fine threads from the joints in the felt between my rafters. In the smaller one there is a spherical cell-like structure, reminiscent of a honeycomb. A similar structure in the larger one

These fragile structures, 25 and 45mm diameter, hung bell-like on fine threads from the joints in the felt between my rafters. In the smaller one there is a spherical cell-like structure, reminiscent of a honeycomb. A similar structure in the larger one is loose in the concentric spherical bowls, which haven’t opened up so much. They looked whiter in the loft a couple of days ago. They were solitary, one between each pair of rafters. Although there is mould on the rafters, there was no musty or damp smell in the loft, which seemed dry.
Are they animal or vegetable?.