Here is a wall which doesn't allow anything to get in, is easy to construct, uses cheap resources, and can generate mob drops (if your lucky). It uses three cactuses stacked vertically to kill anything touching it, (even spiders) which provides a purpose for cactus farms and sand. (which generally is thrown into pits of lava)
I actually want to see someone build this, then see if spiders can get over it. Just because I'm too lazy to. However, I can provide more pics, if anyone wants.
Good sir,
Thank you for creating such a BOSS design using cactuses, sand, and sandstone.
You have inspired me to create a super high circular pillar using this design!
+
Well, this doesn't just prevent mobs from getting in, it also kills them, which can be used to say, keep a mob trap going at night (slightly better I think :/ ) because of the limit of mobs you can have at a time. It can also alert you to mobs climbing over (by their intense prickly pain), if you have any super mob mods. WIN!sthetics are also nice. Trying to figure out a wall top design for it as well, but will probably not mess with it too much because of my underwater base inspiration I currently have. (A MASSIVE MCEDITED HOLE IN THE SEA DOWN TO LEVEL 5)
PICS YOU SAY?
Now to build that to keep spiders from passing my overhang wall(don't ask how they pass that).
Thank you for creating such a BOSS design using cactuses, sand, and sandstone.
You have inspired me to create a super high circular pillar using this design!
+
I like your idea and all, but wouldn't a simple lip on a wall prevent mobs? But I suppose you are going for WIN! aesthetics.