Description
The support for this mod is coming to an end, because I can't add things to it and I can't fix issues anymore. I had to buy a new PC and tried to install my development workspace for Minecraft 1.7.10 on it, but the installation failed, because the Forge Team is not willing to fix the cause of the problem. It would be a simple find and replace job. A developer with the same issue I have got the following answer to his question by a user named DaemonUmbra on the Forge forum who is a member of the forum team.
1.7 is no longer supported on this forum.
Please update to a modern version of Minecraft to receive support.
If they're not willing to help, I have to quit. And that's what I do, I QUIT!
With the SpawningFactory Mod you have the possibility to create spawn eggs for all mobs in Minecraft directly in survival mode except the Ender Dragon, the Iron Golem and the Snow Golem. Before you can start you will need some things what comes with the mod. The mod generates a block called "Limestone". This is the first thing you will need. The block looks like the picture below. Note that the hammer of Version 1.0.2. is not longer needed to get Limestone Dust. The Limestone block will drop 4 Limestone Dust directly.

Now it's time to create blank eggs. For this you will need eggs from chickens. If you have some eggs you can craft blank eggs like the crafting recipe below. You will need one chicken egg and 8 limestone dust.

Now its time to kill mobs. Every mob will drop 0-2 mob drops, for example a creeper will drop a creeper drop. Only three the zombie pigman, the mooshroom and the ghast don't drop it's own mob drops. A zombie pigman will drop a zombie drop, a mooshroom will drop a cow drop and the ghast will drop more ghast tears than normal. To craft a mob egg you need 1 blank egg and his mob drop. The recipe looks like the picture below.

A zombie pigman and the mooshroom has a different recipe. You will need a blank egg, a pig drop and a zombie drop for the zombie pigman or a black egg, a cow drop and a red mushrooms for the mooshroom.

The last thing you have to do is to hatch the crafted egg in a furnace.

Now you have a spawn egg in survival mode in the example above a creeper spawn egg.
Note that this only works with mobs of Vanilla Minecraft. Spawn eggs from mobs of other mods can't create with this mod.
In Version 1.0.3 you can craft Limestone Bricks, a Limestone Bricks Block, Limestone Bricks Stairs and the Limestone Bricks Halfslab. To get the Limestone Bricks you have to cook the Limestone Dust in the Furnace like the picture below.

With the Limestone Bricks you can craft the Limestone Bricks Block, the Limestone Bricks Stairs and the Limestone Bricks Halfslab like the recipes below.

Since Minecraft 1.8 it is possible to change the mob inside a spawner. In version 1.0.5 for Minecraft 1.8.9 and above you can craft a spawner by placing iron bars like a chest inside a 3x3 crafting.

You always get a pig spawner, but you can change it by right clicking with a spawn egg of your choise on the spawner.

