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Optical illusion Magic Trick

October 24, 2013 by Colette Kelly 6 Comments

Optical Illusion Magic Trick

Optical illusionYou will need:

  • A pair of scissors
  • The printout of the ‘Strength Tester’
    *Graphic at the bottom of instructions
  • Stickers and decorative tape

download instructions button s

A few tips before you start:

Optical illusions are great fun and the ‘Strength Tester’ is a real hit. The beauty of this optical illusion is you can do it again and again, it is always effective.

Print the ‘Strength Tester’ on cardboard for the best effect.

Optical illusionStep 1:

Print the ‘Strength Tester’ on cardboard and cut out. Or print on paper, cut out and stick onto some card.

Optical illusionStep 2:

If you wanted to, you can decorate your ‘strength tester’ with stickers, decorative tape and felt tips. You can even trace the two shapes onto different cardboard if you didn’t want the pattern and colour on our printout.

Have fun with decorating – make it look magical!

Step 3:

Look at the video for Tips and Hints on how to perform your ‘Strength Tester’ for the maximum response from your audience.

Well done!

Now you have your Strength Tester Optical Illusion.

Have fun amazing your audiences with this cool illusion.

Filed Under: Magic Tricks You Can Make, Optical Illusions Tagged With: easy optical illusion, make your own optical illusion, optical illusion, optical illusion you can make, optical illusions, strength tester

Comments

  1. julianna says

    October 31, 2014 at 2:06 pm

    AMAZING!!!!!

    Reply
  2. Suchele says

    August 7, 2015 at 10:18 pm

    I’m confused about the Strength Tester Optical Illusion. On the video it says the graphics are slightly different sizes, but on the graphic printout they’re exactly the same. The trick doesn’t seem to work this way. Should I just lengthen one of the graphics?

    Reply
  3. John Anderson says

    November 27, 2015 at 8:19 pm

    I have been doing this trick for years and my “smiles” ARE the same size. I show them together, the same size, now magically give the child the strength of his favorite super hero, now I have the child pick one and then he/she pushes that one and then I show it “smaller” I give the child the other smile and he then pushes it and now they are the same size (they always were). then I have the child use just his thumb and first finger and pull on one, it is now “longer”. He pulls of the other smile and now it is the same size. David Ginn sells a version of this trick.

    Reply
  4. HeyU theclown says

    February 9, 2016 at 12:49 am

    I have twin little boys boys and they just keep taking turns making their piece longer than the other one.. It was so funny to watch

    Thank you

    Reply
  5. Jelly Beans says

    June 18, 2016 at 9:36 am

    WOW!!!!!!
    AMAZBALLS HOW IN THE WORLD DO THEY DO THAT. LOL THEY SAID IT AND I TRYED IT BUT IT DID NOT WORK.???

    Reply

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