- old vases, bottles, jars, …
- leftover oil paint (if you want to be thrifty) or buy some in your desired color
- if the oil paint is too thick, some mineral spirit or turpentine to make the paint pour better
Carefully pour a small amount of oil paint into the vases/jars/bottles and start swirling until the whole glass is covered in paint. Let the excess paint pour back into the paint bucket.
Allow the paint to dry for about 24 hours before using your new vases.