
WHAT TO EXPECT
• Time Needed: 1 hour
• Cost: Less than $10
• Difficulty: Easy
• Safety Issues: Watch out for popping balloons!
SKILLS USED
• Blowing up balloons
• Balloon twisting techniques
SUPPLIES
This build doesn’t require anything fancy. Just make sure you have
extra balloons on hand — they tend to pop!
• 3 twisting balloons and a balloon hand pump
(available in party goods stores)
• Flexible vinyl tubing, 1/4 inches (15 cm) inside diameter
(available in hardware stores)
• Electrical tape
• Scissors
A
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Making Simple Robots, 2nd Edition
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