NeoMobs

Located in the "eggs" directory of the plugin's folder, you will see a file for each mob type. With this plugin, you can create a craftable spawn egg for ANY mob that has a spawn egg, even if the file isn't already in the plugin's "eggs" directory. Create a new file and name it the name of the mob you want to create a craftable egg for. For example, "horse", "bat", "cave_spider". Make sure to add ".yml" to the end. Then, copy and paste the content from one of the pre-made egg files in to the one you just created and customize it however you want. Make sure to use /nse reload after. Example "cow.yml":