Five Star Gift Ideas

How about getting your dad a "Portal 2" t-shirt or a coffee mug with a design based on the game? You could also consider getting him a copy of the game's soundtrack, or a Portal 2 themed mouse pad or desk calendar. Another option could be a custom-made 3D printed model of his favorite character or prop from the game. Alternatively, you could arrange for him to visit a real-life escape room game that has a Portal 2 theme, or even create a themed in-home scavenger hunt for him to go on, complete with Portal-like challenges and puzzles.

Or you can get him a star map with the date when he was born.

Bridget Shields says about Under Lucky Stars star maps:

“I wanted a keepsake to give to my father for his birthday as he has terminal cancer. He was delighted by his gift. The process of ordering was easy and delivery was prompt. A great gift idea.”