What Is an Oshiri Sticker? Complete Guide to Japan's Hottest Puffy Butt Stickers

What is an oshiri sticker, and why is it trending?

An oshiri sticker is a 3D foam sticker shaped like an animal or character with a cute, round, raised butt. Made from sponge foam pressed with high-frequency welding, it feels soft and squishy — not a flat printed sticker, not a hard epoxy doming sticker. Since 2025 it has become a collecting-trading craze (shiru-katsu) among Japanese school kids, with single designs selling in the hundreds of thousands.

Who buys them? B2B opportunities

Main buyers: ①toy/stationery brands making their own oshiri sticker series ②bookstore & stationery buyers for sticker albums (shirucho) ③prize/gacha suppliers ④cross-border sellers (Amazon JP, independent stores). Local Japanese factories quote 1.5-month lead times at MOQ 1,000-3,000 — brands can't wait. That is the China factory opportunity.

Custom manufacturing: material, MOQ, lead time

Oshiri stickers follow the standard OEM flow: artwork (AI/PDF/PSD) → mold making (HF welding die + cutting blade; mold fee negotiable, mold belongs to you) → sampling → mass production. MOQ 2,000 pcs/design, lead time 5-15 days. Materials: PVC foam (firmer 3D) or EVA foam (softer, springier). Print + HF weld-and-cut in one press.

Sourcing checklist: 4 questions to ask

①Confirm foam + HF welding, not epoxy doming (totally different process, feel, and price) ②Factory vs trading company (middleman markup 30-50%) ③Mold ownership in writing (free reorders?) ④Toy safety certs (EN71-3 / ASTM F963 / CPSIA; Japanese channels also ask for ST mark). Put these in your RFQ and you will filter out half the unreliable suppliers.

Why Yikang: one-stop factory for oshiri stickers

Shenzhen Yikang has specialized in puffy foam stickers for 8 years. Foam material, mold making, and HF welding all happen in our own factory. MOQ 2,000 pcs, lead time 5-15 days — about half of Japanese local factories (1.5 months). Mold ownership belongs to you, no re-charge on reorders; IP-protected, NDA available; test reports EN71-3 / ASTM F963 / CPSIA. Contact [email protected] (WhatsApp +86 131 1365 0324).