Create a colourful Halloween balloon display using purple, orange, black and green balloons. This square design is made by joining balloon clusters, without a separate frame. Finish it with a pair of eyes for a playful monster look.

What you will need
- 12-inch balloons in purple, orange, black and green, inflated to 10 inches
- 10-inch balloons in the same colours, inflated to 6 inches
- A balloon pump and balloon sizing guide
- Balloon-safe tying material
- Balloon glue dots
- Lightweight paper eyes, or white and black paper to make your own
The number of balloons depends on the size of your square. Measure your space before starting and keep a few spare balloons. You do not need helium.
1. Inflate your balloons
Inflate the 12-inch balloons to a diameter of 10 inches and the 10-inch balloons to a diameter of 6 inches. Use a sizing guide to keep them consistent, then tie each balloon securely.
Sort the balloons by colour and size before assembling your display.

2. Make balloon clusters
Tie two balloons of the same colour together at their necks. Make a second pair, then gently twist the two pairs together at their tied centres to create a four-balloon cluster.
Use the larger balloons for the main shape. Keep the smaller balloons ready to fill gaps and add texture.
3. Create blocks of colour
Join same-colour clusters into short, compact sections using balloon-safe tying material. Secure them at their tied centres without pulling hard on the balloon necks.
For a look similar to the inspiration, use orange, purple, black and green across the top. Continue down the right side with orange, purple and black, then use purple, orange and green along the bottom. Add black and green sections up the left side.
Adjust the colour blocks to fit the size of your display.
4. Join the sections into a square
Lay the sections on a clean floor and arrange them into four sides around an open centre. Keep opposite sides approximately equal in length.
Join the end clusters together at each corner. Gently rotate the balloons to close gaps and create a square outline with softly rounded corners.
Lift the display carefully, with another person helping if needed. Check its stability in the intended position. If it leans or loses its shape, adjust the clusters and add discreet securing points where necessary. No separate frame is needed, but the finished display must still be safely positioned.
5. Fill the gaps
Add the balloons inflated to 6 inches between the larger balloons, keeping them within matching colour blocks.
Tie them into the clusters where possible, or use balloon glue dots according to the packaging instructions. Use tied connections, rather than glue dots, for the main joins between sections.
6. Add eyes for a special touch
Turn the orange section near the upper-left corner into a friendly Halloween monster by adding two eyes.
Use lightweight paper eyes, or cut two white circles and add smaller black circles for the pupils. Place the pupils slightly off-centre for a funny expression. Different-sized eyes can also give your monster extra character.
Attach the eyes with balloon-compatible glue dots, following the packaging instructions and testing on a spare balloon first. Avoid pins, staples and hot glue.
7. Position your Halloween display safely
Keep the square away from sharp objects, heaters and open flames. Make sure the bottom section does not block a walkway or create a trip hazard. For photos, stand in front of the opening rather than stepping over the balloons.
Assemble close to your event for the freshest appearance. Temperature, sunlight, balloon quality and handling affect how long the balloons look their best.
Keep uninflated balloons, broken pieces and small decorations away from children and pets, as they can pose a choking hazard. Supervise children around the display and consider latex allergies.
After the party, collect all balloon pieces and decorations and dispose of them responsibly. Never release balloons outdoors.
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