SquidUtils is a tweak mod that lets you set various properties of Vanilla objects.
The mod has been completely rewritten for Minecraft 1.9. Only a limited number of features are available at the moment.
To get started with the mod, the user has to create a new .conf file in /config/SquidUtils. I’ve not had time to document it yet, but there’s an example file containing all the available tweaks here. The mod prints all IDs you may need to /config/SquidUtils/info.txt at startup. If you want to look at the existing properties of blocks and items, they’re listed on the Minecraft wiki.
Just go ahead and use it. Give credit and all that stuff.