Well I do know of charging a specific object with energy for a specific purpose. Can this be done on a painting or a drawing of some sort? Will it still work as a painting or drawing is still essentially an object?
Yes it is possible. People often use artwork as forms of sigils. I personally suggest charging it while creating the piece. In this way you are instilling focus on the purpose while creating it, and have less chance of other emotions effecting it. If you are using something already made I would suggest cleansing it first before giving it a purpose.