Take your clean tank or bowl (ensuring that you've removed your fish!) and find a clear well ventilated area. For the purpose of our project we chose to use the name of our fish for the design but you can experiment with all sorts of words, shapes or patterns.

To make the template for your letters you can draw them free hand or simply print the individual letters out using a computer. Use the print out as a template by cutting the letters out.

Place each letter on your sticky-back plastic and draw round it. If you're using a square or rectangular (flat sided) bowl you can make the mask as one piece. If you're using a circular bowl you'll need to cut out each individual letter, leave plenty of space between them as each letter will act as a mask as you spray. Make sure you keep the pieces that form the letter i.e. the centre of an 'o' as you'll also need to stick these down when spraying.

Lay down plenty of newspaper to protect thesurrounding area. Carefully stick the mask of your letter to the outside of the bowl. Remember if you're using a circular bowl you'll need to do thisone letter at a time to achieve curved lettering, pay special attention to the angle of the curve as you go.

Spray the Glass Frosting about 4 inches from the surface. Two thin coats will give better results then one heavy coat. Make sure you have protected the areas of the bowl you are not spraying using your mask and, if necessary, newspaper.

Once the letters are dry you can move on to the bubbles using the same process. Allow at least 3 hours drying time before using the fish bowl.

Note: Always follow usage instructions on the reverse of Plasti-kote Spray Paint cans. Do not use water to clean the outside of your tank; simply rub gently with a soft dry cloth. Glass frosting can be easily removed with warm soapy water.