This simple Minecraft necromancy mod lets you spawn skeletons that follow you around!
Simply spawn them by right clicking with a Necromancy Staff. These skeletons can be toggled between following and sitting by right clicking on them. The config allows the customization of staff uses and the number of skeletons a player can have.
Necromancy Core
Necromancy Staff
Feel free to use this in your mod packs. I would appreciate it however if you send me a message.