Create Mimic

You create a small floating orb of golden fog in your hands. After 2 minutes the caster throws the orb at a non-living, object of choice with a volume no larger than 150 cubic feet. The golden fog wraps around the object. When the fog dissipates the object is temporarily transforms into a mimic for the duration of the spell or until it is killed. 

The mimic will not attack the caster but it is not loyal to them (it does not follow commands given). The mimic will attack any other living creature including other party members. Worn objects (such as clothing and armour), objects bolted to the walls (such as doors and wall lanterns) and buried objects cannot be targeted by this spell. Objects being held or carried can be targeted.