You can head to Akabane Ichibangai Shopping Street, Sunshine City Shopping Mall or Yanaka Ginza Shopping Street to shop for the perfect souvenir. If you're interested in local cultural spots, you can visit Banknote and Postage Stamp Museum, Tokyo Kasei University Museum and Paper Museum. Additionally, you might want to add Ajinomoto Field Nishigaoka and Sumida River to your itinerary.