Five Star Gift Ideas

That's great! Here are a few gift ideas I came up with based on your grandpa's interests:

1. J.K. Rowling Book Set: If your grandfather hasn't read all of J.K. Rowling's books, you can introduce him to a new series with a book set. You can gift him a set of Harry Potter books or one of her other series like Cormoran Strike novels.

2. J.K. Rowling Mug: A personalized mug with J.K. Rowling's quotes, favorite characters or even a Harry Potter design is a great gift idea for your granddad. Every time he will drink tea or coffee, the mug will remind him of his favorite author.

3. Hogwarts Tour: If your grandpa is a huge Harry Potter fan, a visit to Harry Potter World, in Florida or Hollywood, can be the perfect gift for him. It will give him an opportunity to see everything he's read in the book come to life.

4. Wizarding Wands: If your Grandpa loves to cosplay or dress up, you can gift him a wizarding wand- a replica of the one used by his favorite character.

5. J.K. Rowling Merchandise: From bags, t-shirts, phone cases, notebooks and even socks, you can find a wide variety of merchandise based on J.K. Rowling's work. A cool Harry Potter tote bag or t-shirt that he can wear to show off his fandom is another gift option.

Or you can get him a star map with an important date you share.