Check it out...
Here's what to do...
1. Get an old playing card and a pair of scissors.
2. Fold the playing card in half lengthwise.
3. Make two cuts down from the folded edge on either side. You want them to be pretty narrow (mine were about 1/8") and go down almost to the bottom (again, about 1/8")
4. Continue making alternating cuts about 1/8" wide. Make your 2nd cut starting at the bottom (non-folded edge) and going up to about 1/8" from the top, do the opposite for the 3rd cut and so on.
5. Now, cut on the fold for each of the middle pieces. DO NOT CUT the two ends!
6. Carefully open up your card and you should have cuts that look like this.
7. Now really carefully pull open the card to make a loop. It'll be stretchy but pretty delicate, so do this step gently!
Now put it to the test! If your cuts were narrow enough, you should be able to step through that playing card!
NOTE: As I mentioned, your card loop will be really thin and stretchy, making it susceptible to tearing. However, if your child steps into it carefully, he or she will be able to actually fit through a single playing card. My son is an average-sized 8 year old. I'd imagine if you made your cuts even thinner, a larger child or even an adult could fit through.
Helping you be the cool grown-up by sharing this trick at: