Bone Puppet

This spell creates an undead servant. When you touch a bone it is carved into a small puppet.

On each of your turns, you can use a bonus action to mentally command any creature you made with this spell if the creature is within 60 feet of you (if you control multiple creatures, you can command any or all of them at the same time, issuing the same command to each one). You decide what action the creature will take and where it will move during its next turn, or you can issue a general command, such as to guard a particular chamber or corridor. If you issue no commands, the creature only defends itself against hostile creatures. Once given an order, the creature continues to follow it until its task is complete. The maximum amount of puppets the player can create from a first level slot is 2.

Bone Puppet Mini stat block:
Health: 1d4 +2
Attacks:
Puncturing Cut: 1d4 -1 Piecing
Desperate flailing: 1d4 +1 Bludgeoning 
Movement: 30 feet walking 10 feet climbing
(Full stat block under My Homebrew page)

The creature is under your control for 20 minutes, after which it will fall into pieces, or at higher levels it can even fulfill a simple task indefinitely.
At higher Levels, the amount of bone puppets that user can create increases by 2 per spell slot level.