I finally got around to build something like a Tophe idea!
There was a discussion somewhere about a P-38 with sharkmouths, with a mention of cerberus three-headed dog,
and I found a cerberus figurine which seemed fine for such a treat :
and I used a HobbyBoss P-38, cheap but surprisingly clean, and funnily designed with two half-airframe, upper and lower ...
and here is the hybrid (in yellow ;-) ):