Try here. As an example -
https://www.shapeways.com/shops/microboathobby?section=Propulsion+components&s=0
I didn't really search around all the ships stuff. Model Monkey does some really nice gunnery.
EJ
Completed - 1/525 Round Two Lindberg repop of T2A tanker done as USS MATTAPONI, USS ESSEX 1/700 Hasegawa Dec 1942, USS Yorktown 1/700 Trumpeter 1943. In The Yards - USS ESSEX 1/700 Hasegawa 1945, USS ESSEX 1/700 Dragon 1944, USS ESSEX 1/700 Trumpeter 1945, USS ESSEX 1/540 Revell (vintage) 1962, USS ESSEX 1/350 Trumpeter 1942, USS ESSEX LHD-2 as commissioned, converted from USS Wasp kit Gallery Models. Plus 35 other plastic and wood ship kits.