Have you guys seen SRM's Party in a Bag kits? I am just so in love!
I used the tubes for table placement, filling each one with a punching balloon and using a metal rim tag for their names. I also used the same size metal rim tag for to tie on to the invitations.
Birthday Party in a Bag, SRM Stickers
Pattern Paper: Let's Party Pyramid Pad, Momenta
Twine: Caribbean, The Twinery
Misc: Metal Circle Tags, Avery and Punching Balloons