Instructions
Start Forge mode on any map.
Press "Up" on the direction pad to enter monitor mode. You must be in monitor mode to place and edit objects in the map.
Press "X" to open the items menu.
Press "RB" three times to change what items are being displayed. The top of the items menu should say "Scenery."
Press "A" to select "Drum, 55 gal" or "Drum, 12 gal." You cannot use both sizes of drum on one map.
Move the drum using the control stick.
Press "A" to place the drum. The drum falls to the ground if it is placed in mid-air.