Answer:
Soft, hairy, from door to door. I am the pet that always stays on the floor. What am I?
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
I am a type of weapon for SCI-FI characters
My first half means container. Not a lot of people understand my language.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.