Flip the shape from step 5 upside down. 

Use scissors to cut out the shape of the ears.

If you've ever been to Japan this time around, you might have seen these huuuuuuuge fish kite looking things flying around town. These are "koinobori" which yes, is koi, or carp! Carps are known and often depicted as going upstream through a river or waterfall (and one of the few fish that can) and according to Chinese legends (where the tradition of Kodomo No Hi actually originated from), once the carp reaches the top of the waterfall, they become dragons 🐉! Koinoboris are now used to symbolize both family (if you look closely, they range in size from Dad, Mom, and Child) and hopes that a child will grow up to face the currents of life. 

"But I don't have a koinobori!" you say. Well, we don't blame you. Those things are huge and expensive. But some local supermarkets do carry smaller ones that are desk size! You can also make your own! We've got just the DIY craft you can do! 
While you're in a craft mood, try making a kabuto hat out of newspapers to wear around!

Ah, now onto the food!
If you're born and raised here, you're probably more familiar with the one on the left. That's the common Kashiwamochi, eaten on Kodomo No Hi.  
Kashiwa leaves are oak leaves! And oak leaves are known to not fall off until the new ones can sprout. People have put in the meaning of "until the child grows up, the parents will not pass" in hopes of their children growing up healthy. 
Chimaki sushi, on the right, are commonly eaten in the Kansai region and is a mochi often wrapped in bamboo or reed leaves. 
Pick some up at your local Japanese supermarket and start chewing away!