I think they're called insectoids, the robot alien things ? I just thought the torso would be less fun to use without the faces
I did not make anything from the insectoids line, so you can be bored without the faces AND the decals <3
None of the space decals I made had alien faces. One of them had a robot face that I didn't make, but one robot face doesn't really seem worthy for an entire space pack.
However I have considered in the past making my own aliens based on generic alien stereotypes. Maybe I'll work on these sometime. The trouble is, most aliens don't really resemble humans, and almost all of Lego's official Aliens use custom head pieces. Thus it'd be impossible to replicate these in a decal without them looking stupid.