Ledger only offered promotions through their swap service providers like MoonPay, LoopiPay, and some others where you could buy cryptocurrencies with 0 fees. Nothing special or worth mentioning, really. They didn't offer any discounts on their hardware wallets.

But I did find something interesting and completely unrelated to Bitcoin Pizza Day while looking through their Twitter. They are trying to solve the Blind Signing dilemma and are looking for collaboration from developers to create safe Clear Signing standards for the ecosystem. Altcoiners might find that interesting.