Another thing to consider is the appeal of the jar. A basic mason jar may be too plain or not interesting enough to you. If the jar has a unique shape, this can heighten the appeal of the end look once the project is completed.

If soap and water are not enough, use some rubbing alcohol on a cotton ball to wipe the surface of the glass. This will remove any additional grease or grime on the jar.

If you’re using a drinking glass, place a piece of tape around the top of the glass to avoid your lips coming in contact with leftover glue. [4] X Research source

If you’re having trouble selecting an image, consider the end use intended for the jar as a guide. For example, if the jar is to contain candy, find images with pieces of candy or other tasty treats. If you want to do an autumn theme, you can get real or fake fall leaves to adhere to your jar. [6] X Research source

If you’re using fabric, make sure to use fabric scissors to cut it.

If you need to, make small marks with a light maker to clarify the exact positioning of the imaging on the jar. You can use a pen suited to glass if you need to make placement markers on the jar.

Avoid newspaper when covering your workspace. It will stick to your mason jar and ruin your project.

You can also make your own decoupage glue with water and basic white craft glue. Pour 1-part water and 1-part glue in a paper cup and mix it with a craft stick. Make sure to stir it well and use it quickly before it dries. [12] X Expert Source Nicole BolinCrafts & DIY Specialist Expert Interview. 29 October 2020.

If the images are small, or you’re layering them, put the decoupage glue on the back of the image. To do this, lay the image face down on the grease-proof paper. Use the sponge brush to evenly apply the decoupage glue to the back. The layer needs to be thin, otherwise the pictures might get too wet and tear. [13] X Expert Source Nicole BolinCrafts & DIY Specialist Expert Interview. 29 October 2020.

If you made a mistake with your positioning on the jar, use tweezers to remove or adjust the image. This will help to avoid sticky fingers. Repeat for any additional images being added. If you decided to overlap any images, do so with care to ensure that the images look neat and appropriately placed.

Small air bubbles may form while the glue is drying. If this happens, use a safety pin or utility knife to pop them. Then use your fingers to smooth it out.

Make sure you allow the glue to dry for at least two hours before adding another coat. The decoupage glue will appear cloudy when first added, but it will dry clear.