When all you have is a piece of a moviestill...

Alien Trash Monster (Dianoga), Kenner, USA, 1977

This baby came from the US-version of the (vintage) Death Star Space Station (not the UK / Palitoy cardboard one, but the plastic version by Kenner.

You have to admit Kenner product-designers did a great job when all the source-material they had were some movie stills of only the eye-part of the beast...