>my mom's one of those people who's impossible to buy for and has been waxing poetic about how nice it would be to have a wok for a month or two now,
I suggest you get her a cookbook dedicated to wok cooking to encourage her to use it for more than one dish that does not require a wok.
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Purchase a carbon steel wok from the WokShop, 14" is ideal for a standard American stovetop. Flat bottomed for electric stoves, round for gas.
You will also need:
Learn how to season and maintain it properly.
https://www.seriouseats.com/2010/06/equipment-how-to-buy-a-wok-which-wok-is-the-best.html