Just came here with two b-day cards and tag.
First one is boyish, I used green and navy blue - typical colors for boys (in my opinion).
I also used chipboard (a bike), "16" made of stickers, sting and label.
Second card, as you can see, is girlish.
I am huge fan of pink.
Also used some roses, chipboards (birds, frame) and pearls.
And in the end of this extremely long post,
little tag, made as an addition to coffee packs.
Have a nice day!