A mod which adds grappling hooks. The aim of this mod is to provide a fun way to get around large builds like cities.
New in v11:

New rope physics

New customization system

Customization system gui

new config file to adjust game balance
Note that in this version, recipes and other things were changed due to the customization system, so this should alleviate concerns about the mod being too OP.
More gifs
New in v10:

Smart Motorized Grappling Hook - based off of the Titanfall 2 grappling hook
(map: http://www.planetminecraft.com/project/future-city-3149015/)
(full video: https://youtu.be/u1VawAqziQ0)
New in v7:

Magnetic Grappling Hook - swing around like spiderman!
(map: http://www.planetminecraft.com/project/future-city-3149015/)

Dual Motorized Grappling Hooks - Weave between buildings!
(map: http://www.planetminecraft.com/project/project-shiganshina-district-attach-on-titan/)
Videos
Watch all demonstration videos: https://www.youtube.com/playlist?list=PLf9KesthqnFnuCS-FKlQSlqqRGKYmeHBk
Reviews
Configuration
There is an in-game configuration in mod options, or you can edit the config file grapplingHook.cfg
Also, you might want to check out this mod: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1286235-custom-recipes-make-customize-and-remove-crafting or similar mods to configure the crafting recipes or remove items
Source
https://github.com/yyon/grapplemod
The map shown in the videos (not mine): http://www.planetminecraft.com/project/future-city-3149015/
Also http://www.planetminecraft.com/project/project-shiganshina-district-attach-on-titan/
