I've seen alot on the net about making small (or big) dark rooms that spawn random mobs and then use a killing method (drop/lavablade/etc.) to collect items (not xp). The idea is to just go AFK and when u come back you have tons of drops.

Obviously going AFK is out of the question, but I spend a lot of time near my base so if I had one far enough Way to get monsters to spawn(and close enough) near my base I could collect items without any effort.

3 things.  1 is this legal on famcraft (without afking) 2 does it work on famcraft server? 3. Anyone have a working one that I could check out to get ideas?