Not going to get into all of them.
I'll go with the napkins 44x60
Get 2640
Here's something related to that number
[
link to www.2640space.net (secure)]
Check out their events hmm interesting.
Another 2640 stands for a California family code Law. To do with property loans another thing that comes up is called Epstein credits...
Since this is to do with a representation of years. Why not take the sum 2640 and subtract from current year. We get 619
619 is basically code for California (San Diego)
It is also a move used by wrestler Rey Mysterio. Reggie Bush uses 619 on his eye patch.
This comes up searching 619 slang
619 - Urban Dictionary
A person or people that purposefully causes chaos or mischief within a group for the sake of entertainment.
Seems what I'm coming up with most is California out of it.
If any feel like playing with the date of the party or to add more feel free.