Thank you to puzzlingnerd57 for the item that America shows Japan in this oneshot.
"Kiku, look at what I found at the store!" Alfred ran in to the Japanese man's home in his usual flurry of excitement.
"What did you find?" Japan asked America.
"These erasers! Aren't they cute? They were made at your place, and this one reminds me of myself!" He held out Japanese puzzle erasers.
"Yes, they are very cute. I figured that you would like that one." He answered the American as he looked at the fast food set that America was holding near.
"Look at the other one! Remember when I tried to paint it red?" He held out the Mt. Fuji one next.
Japan smiled in amusement at the thought of what his friend had tried to do.
"It was too large to paint red." He pointed out as seriously as he could.
"I know that now! Maybe we should climb it one day? You do do that?" America asked hopefully.
"Yes, we do. It happens during Summer time." Kiku answered him.
"Ooh, can we go? Can we?" America asked like an excited puppy dog.
"When it is Summer." Japan answered.
"Okay, can you help me with these Japanese erasers?" Alfred asked.
He nodded, and shown America how to take them apart and put them back together.