They are *out!* Woohoo!
Though... something to keep in mind... I had mine weighed two different times at the same post office (The Main Airport one) and each time they told me something different. I obviously went with whatever the cheaper postage rate was... so here's hoping they make it to their destinations!
And, yes, I know I'm crazy for sending them around Christmas... but I have an RSVP date of Jan 19th!