I remember when I was a kid, I "invented" my own holiday on the day before Thanksgiving... mainly because my mother didn't believe in half-days at school (she thought it was pointless for kids to get up early, go to school for three hours just to do nothing, wasting gas, time, and energy), so she kept me home those half-days before Thanksgiving, so I called "Gerschmigimer" or something like that...
Also as a kid, I always wished my birthday was a holiday, as do a lot of kids... even the furry purple ones with yellow horns... wink-wink, nudge-nudge.