how to add static mesh to player via buff?

i have a consumable item that gives a buff when used, i want the buff (or consumable) to add a static mesh to the player’s head - im attempting to do it with the graph editor, i have added the static mesh to the components tab and set the buff to apply in the consumable blueprint, i am now trying to figure out the graph editor in the buff blueprint. can anyone tell me the best way to add the static mesh via a buff/consumable? thanks.