When I knew about Tohl Narita’s 3 principles in kaiju design, I have to admit I found it contradictory that he designed Bostang and Peter that just looked like a giant version of a stingray and chameleon-like lizard.
As to Bostang, I learnt later that a monster named Clapton (I don’t think it plays the guitar) was to appear in an episode titled ‘Oil S.O.S.’
After Clapton was actually designed by Narita, its puppet was modeled by Ryosaku Takayama.
But the prop was converted into a (giant) stingray when the episode was replaced by ‘Space Directive M774.’
It’s said that Clapton was set to be a monster which fed on oil, but the episode ‘Oil S.O.S.’ in which Clapton was to appear was left unproduced after all.
While Ultraman has an episode with the same title featuring Pester that is also a kaiju which feeds on oil, the Ultra Q episode left unproduced seems to be about a different story.
Although why Clapton was changed into an ordinary stingray (Bostang) is unknown, it’s presumably because of shooting issues.
It’s fun to see Clapton have a drill-like part on the tip of its head similar to that of Gubila of Ultraman.
In the primary version of the design, we can find a creature like a jellyfish was also drawn as Clapton by Narita.
Although both versions of Clapton seemingly remained in the range of the giant versions of real-life creatures, I feel like they could have been much better than just an ordinary stingray.