Jambon, time to pull out the "Head of the Household" card. You are the father, the husband, the head of the household. Even JWs acknowledge that. And you can say, as head of the household that you want to celebrate --whatever you celebrate!-- YOU are free, you are not a JW to be consricted by their rules. You could even insist your wife join you, and she could since you are her 'head'. Sexism comes in handy sometimes, huh?
While you are at it, you might want to get your daughter out of the meetings, or at least keep it to a meeting a week (sunday talk is probably the least indoctrinating, or offensive (thats how they suck in new people), and its only a half hour!! You are in a position of strength. Flex it!
And a dollar a tooth, with fairy dust, seems appropriate. And get her a singing christmas penguin. . .my kids have started already and it just makes me happy to hear the dang little thing singing "giddyup giddyup giddyup let's go, lets look at the show. . .its grand, just holding your hand. . ." I know, its still a month to halloween, but I was brought up JW and I have to get warmed up a bit:) We celebrated till all the major teeth fell out, and when we were 8 the holidays had petered out altogether. My mom was fortunately very slow at getting baptised.