This appears to be a normal old dirty sock but, if one puts the sock on their hand it will transform into what appears to be the upper body and head of a humanoid creature. The PC still has control over their covered hand and can remove it at any time but, once on the Companion comes to life and can speak.

The companion has an Intelligence of 14 and has access to the following skills:
Arcane +2
History +2
Religion +2
Nature +2
The companion also has the ability to cast the following spells each 1/day:
Identify
Comprehend Languages
Spare the Dying

The sock puppet will take a name associated to its possessor and though telling bad jokes and smart remarks it's Alignment is Neutral Good and will do it's best to help its master.

Notes: PC must put the sock on their hand and wait just a few moments.