Austria
Copiaro: https://copiaro.com/en/collections/stamp-seed
Canada
QuickBit: https://www.thecryptoboutique.ca/category/stamp-seed
Germany
Copiaro: https://copiaro.com/en/collections/stamp-seed
New Zealand
The Bitcoin Shop: https://thebitcoinshop.nz/product/Stampseed%20Deluxe%20Kit
North America
The Crypto Merchant: https://www.thecryptomerchant.com/collections/stamp-seed
Serbia
Sidechain: https://sidechain.pro/products/stamp-seed-stone-paper-seed-phrase-book?_pos=1&_sid=878e662c2&_ss=r
Slovenia
Bitcoin Shop: https://bitcoin-shop.si/?s=stamp+seed&post_type=product&lang=sl
ENAA: https://www.enaa.com/znamka/stamp%20seed
Ukraine
NAI: https://newage-invest.com/?s=stamp+seed&post_type=product