Hyperostotic Spines
Collection of certain similar looking ones
https://books.google.com/books?id=DUs9AAAAIAAJ&printsec=frontcover#v=onepage&q=tilly-bone&f=false
Black Drum:
http://txmarspecies.tamug.edu/otherdetails.cfm?scinameID=black%20drum%20dorsal%20spine (link broken? one below should work better)
https://txmarspecies.tamug.edu/otherdetails.cfm?scinameID=black%20drum%20dorsal%20spine
Marine Angelfish:
http://www.thefossilforum.com/index.php?/topic/28299-weird-bone-from-york-river-va/
Atlantic Spadefish
http://helterskeletons.com/atlantic-spadefish/
(Ephippidae includes both batfish and spadefish)
Unknown:
https://www.inaturalist.org/observations/5241279
https://www.inaturalist.org/observations/19215027
https://www.inaturalist.org/observations/23729277
https://paoloviscardi.com/2013/01/28/friday-mystery-object-184-answer-well-not-really/
https://www.inaturalist.org/observations/20364055
https://www.inaturalist.org/observations/28078409
http://www.thefossilforum.com/index.php?/topic/89151-large-oligocene-fossil/