We do not do small design tweaks for things like this. Google might be able to do daily fun doodles, but it would get out of hand we did that here given the number of sites we have (and we keep growing!)
Sorry!
For the birthday celebrations, we're looking for the communities to come together with the initiative to put something together. It isn't really for the purpose of just sending swag just to send swag. We do that for other things alreadyWe do that for other things already... (:
