A good quality (adult) learn to draw book. Drawing pad and sketch pencils in a tin.
Logic puzzle book - if you can’t do them, you could learn and each puzzle will take 10-15 mins.
Sudoko, cross words. An adult puzzle book and word search.
Chess - magnetic
Learn to crochet - there are some great animals that can be turned into huge key ring toys that can be gifted to his friends. My friends child is so good at making them and gifts them.
A good book. Skandar series or Percy Jackson or Harry Potter. One to get settled into.
A really good album - listen from start to finish. One headphone each - old school style.
Origami - you can bin the creations if you need to.
Draw and design an island. With a key include treasure.
Get the ordinance survey puzzle book and do it together.
GCHQ puzzle book.
One of the old school ‘choose your own adventure’ book by Livingston - Green sppine - you will need dice.
Learn poker.
The travel board game Azul is excellent.
Sticker art book from the works.
Write a story. There is a structured book by Osborne or Usborne books if it’s easier.
Break it down into 30-45 minute sections. Puzzle book. Go outside if possible to watch the waves. Crochet. Eat. Poker. Read. Etc
A Japanese anime book that you read backwards.
There’s a really good history podcast for kids that mine love I think it’s 30 mins long. It’s funny.