My boyfriend is totally into chemistry physics and science so this card would be perfect for him! This card would also work for a girl who has the same interests as my boyfriend, you don't want to give this card to someone who doesn't enjoy it!
I actually made one of these for my guy several years ago - he LOVES it. He keeps it in his office desk drawer. He tells me that when his day is not going well he pulls it out and looks at it! 14 DIY Gifts for Men They Will Actually Love