Hi @Anonymous User
Why don't you buy a NOW Stick from either an online Retailer or by going into your local Currys, Argos or Major Supermarket such has Tesco or Asda for example.
To follow up from @schnapps not long ago you could order a NOW stick directly from NOW on the website. However it’s been marked as out of stock and removed from the website, most likely because NOW have stopped producing their own devices.
If you can stretch your budget a little further I would recommend an Amazon fire stick, as the NOW stick can be prone to overheating and randomly disconnecting from the Wi-fi.