The most embarrasing present I ever got was from my girlfriend, when I was about 16.

She bought me an absolutely HUGE packet of varying flavored condoms (chocolate, strawberry, vanilla... the lot!) for her pleasure. She forgot to realise that I would have to open my present in front of the whole family which on christmas day included my parents, both sets of grandparents, 3 cousins, uncles, aunts and my 2 stupid little sisters who just couldn't stop giggling for the rest of the entire christmas day.