What, you don't celebrate 3/4 birthdays? We do. Any excuse for cake and some fun. Here's a cheap and easy Hedwig, Sharpied on a balloon.
I made a big deal out of last year's 9 3/4 birthday, so they got it in their heads that 3/4 birthdays need to be commemorated too. Counting down the days until I turn 40 2/3...