Things You'll Need
Instructions
Put on a long-sleeved shirt. Roll back the right sleeve if you are right-handed, or the left sleeve if you are left-handed.
Hold a can of string-shooting foam against the inside of your hand. Move the can so that the nozzle at one end is even with your wrist. Rotate the can so that the nozzle is pointing away from you.
Have an assistant wrap a strip of masking tape around the bottom of the can and your arm. Have the assistant wrap a strip of masking tape around the top of the can, just below the nozzle, and your arm. Roll the sleeve down so that it covers your arm and the can.
Go outside in your backyard. Have your assistant stand a few feet away and pretend to be a bad guy.
Shake your arm up and down for five seconds. Turn your hand over so that your palm is facing you. Aim your hand at the "bad guy." Press the nozzle with your thumb to fire your "web."