I’ll start - youngest BiL gave dd1 a book of cartoon strips entitled Cuba for Beginners.
Dd was 2! So luckily too young even to be disappointed.
I did ask BiL why on earth he’d thought a political book for adults was suitable for a 2 year old.
He said, ‘Well, it does say for beginners…’.
Many years later (dd were mid teens) same BiL did redeem himself by giving them each 2 x £50 notes. That was over 20 years ago now, so it was a lot.