Bought my niece a book ('The Hobbit') for her birthday and figured that I'd pair some Lego with it, considering her age class, but couldn't find a single (affordable) Lego tie-in. So I tried 'Lord of the Rings' instead, same story. Then I tried 'Rings of Power' as a last resort, and the only results were 'Lord of the Rings' tie-ins, rofl.

You can buy a shitty plastic Gandalf pipe to smoke some Shire weed (left over garbage from The Hobbit era), but not a single 'Rings of Power' piece of merchandise.

The Harry Potter franchise on the other hand is still going strong. They're even releasing new Lego kits each year, although each of them is paired with a little Harry Potter Lego figure, resulting in a Harry Potter clone army if you are foolish enough to buy them all as gifts.