Mo' Shovels adds over 50 Shovels into Minecraft made out of Vanilla materials. Each one has its own stats.
The half of the shovels are pretty much useless (common - uncommon), but the mod should provide you the ability to make a tool out of almost everything you have.
The other half is better than iron, which make them a Rare Shovel.
Epic Shovels are better than diamond (not in every stat) and they also have unique stats.
And then there are Mythic Shovels, which have a special ability and can be used by right-clicking.
There are a ton of new shovels to play around with and you can basically craft a special shovel out of anything you have. There is a full list of shovels that you can check out HERE