https://mathwallet.org/
Math Wallet, The Multichain Wallet for Web3
MathWallet is a multi-platform (mobile/desktop/hardware) universal crypto wallet that enables token storage of 150+ chains including BTC, ETH, Polkadot,...
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https://shop.ucalgary.ca/Catalogue/ucalgary/stationery/office-and-study-supplies/other-school-supplies/staedtler-math-set-student-4pc-with-wallet
Staedtler Math Set Student 4/PC with Wallet - University of Calgary Bookstore
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