The black one was found in southern part of Norway, and the light-brown one was found in a beach in Alcudia northern part of Mallorca.

• To my knowledge I believe the light-brown one to be a small spotted catshark egg (scyliorhinus canicula).

• And the black one to be a Thornback skate (Raja clacata).

Not important but: yes I did have to glue one of the horns back together on the black one which is why it can look wet.

Any suggestions of what they could be are very appreciated.