Wout12345 | 20m/s 4x1 Slime elevator (50% reliable) - Minecraft @Wout12345 | Uploaded 10 years ago | Updated 51 seconds ago
This is just something I worked on for a bit since the slime blocks were released. Don't worry: I know there are tons of "3x3 slime doors" around, but this thing actually has some advantages I didn't see on Youtube (or anywhere else for that matter) before.

Links:

SCHEMATIC DOWNLOAD:
http://www.planetminecraft.com/project/20ms-4x1-slime-elevator-unreliable

Missed any links? Let me know in the comments!