These are Creatures 1 COBs that were made by the BoBCoB Development team using BoBCoB:
The Wishing Well
This replaces the well next to the teleporter with a
wishing well. At long last, a COB that caters to your creatures' every need!
This places a frog near the pier of the underground
raft. Listening to the frog will entertain your norns and calm them down.