There was a movie I watched when I was younger sometime in the mid 80's about a boy who created this little troll/monster by mixing something in a blender that turned neon blue. He poured it out and it formed into the troll/monster. The troll/monster was his friend and would bring him underground into it's world. I can't remember the name of the movie though. I would appreciate it if someone could help me find the name of the movie.

Gremlins?

No in Gremlins the boy got Gizmo from an old man and when you put water on him it would make the bad gremlins

Was it that monsters under the bed movie with the guy from wonder years? The monster guy was blue and would take him under his bed to the monster world but I don't remember the blender part...

There was a movie I watched when I was younger sometime in the mid 80's about a boy who created this little troll/monster by mixing something in a blender that turned neon blue. He poured it out and it formed into the troll/monster. The troll/monster was his friend and would bring him underground into it's world. I can't remember the name of the movie though. I would appreciate it if someone could help me find the name of the movie.
I know what your talking about I'm trying to think of the actor
This thing follows him to school or some place and learns he can go invisible
It wasn't a movie though I don't think
It was from twlight zone or tales from the crypt
I remember it was a series of some sort

The boy who blended up the monster( the drink) had dark hair
He was some famous movie just can't think of who he is
Because I think after he blended up the drink he dared his sister to drink it and she poured it into a plant
Not sure haven't seen it a long time either

The movie is called fuzz bucket:) It's a disney film