nitroglysarine:
http://www.bigboxgames.com/mageknightconquest-1.aspx
-sorry if this has been up here before but i don’t recall seing them. I’d rather like to buy a set or two, but they only ship within the us 
and i’m in the uk.
Hashut’s Blessing:
The Ballista could easily be converted intoa BC statue bolt thrower for a CD themed Hobgoblin Bolt Thrower 
The others look quite fitting too, but “needz mawr skuhlz!” 
Clinkz:
The Ballista could easily be converted intoa BC statue bolt thrower for a CD themed Hobgoblin Bolt Thrower ;)Agreed, with a bit of conversion work these could come out quite nice.
The others look quite fitting too, but "needz mawr skuhlz!" :D
Hashut's Blessing
aka_mythos:
I’ll post some pictures later, I got two of these sets for $6 each off ebay. With some scratch building of bits and conversion I turned the the cannon/mortar into an Earthshaker, the catapult into a bolt thrower, and the living balista into an “ass-cannon” unit filler. Pretty good for $12.
Its worth noting that these are vinyl like, softer plastic, so the thinner parts are fiddly.