Polymorph Mod

Polymorph is an amazing utility mod that you will find very helpful, especially if you play modded Minecraft. Some mods add crafting recipes that conflict with one another. That is, the same crafting recipe can be used to craft more than one item. In this case, one item may override the other, making it impossible to craft the other items. Polymorph fixes that for you by adding an option that allows you to choose from a selection of items that you can obtain from the same crafting recipe. The image will give you a good idea of how the mod works. If you play vanilla Minecraft, this mod may not be of much help to you.

This is a Forge mod and download links are given below.