1 Wash and dry the item. Remove any grease. Prepare the item correctly before you start: Lightly sand away rust, paint it, or block off sections with masking tape. If the surface is porous, such as wood, you can seal it with a layer of modge podge.
2 Think about how you want to decorate the item and cut the paper or serviettes accordingly.
3 Paint a thin layer of modge podge over the section where you will begin, place a piece of paper on top and paint another layer of modge podge over the paper.
4 Smooth out any wrinkles or creases, but be careful not to tear the paper.
5 Repeat these steps until you are finished. Leave the item to dry then paint on another layer or two of modge podge over the entire surface of the item. After these layers have dried, you can paint on another couple of layers of modge podge in a criss-cross way.
6 When the modge podge is completely dry, you can seal the item with a clear varnish, if you prefer. There are several varnishes that are specially formulated for decoupage. You can also use resin, if it is suitable for your project.
Source: Ideas Magazine