At my school, where I also advised for 6 years, the Pi Chis make the nametags for the pnms. Some are more creative than others. I would have LOVED to have made my own.
I actually made all the nametags for my sorority myself when I was recruitment advisor for years just because I had so much fun doing it. One that might work particularly well in this situation is a license plate. I found a website with the blank images for each state and then used a desktop publishing program to add the names. Each girl had her home state. They were a huge hit.
In this case I would think it would make more sense to come up with one nametag and wear it all week rather than changing each day to match your outfit. If you come up with a super cute nametag it will help the girls identify you. They might tell their friend "You have to meet the girl with the really cute chinese take-out box nametag at the next round" and if you show up without it, the friend won't know which one you are.
I am no longer the recruitment advisor for my sorority because I moved up to a different position at the district level and I know I will miss making nametags. Maybe I should start a business making them for people on here! Some I've done in the past:
3D flip-flops for a beach party,made from that craft foam.
city skylines for a NY theme party
Photos of a starbucks to-go cup with each girls name printed on the cup (had some help from a graphic designer alum for this one) for a coffee themed party
Lollipops with real lollipop sticks, a colored circle and cellophane.
Blue gingham border with red sparkly shoes for a Wizard of Oz party
Popsicles with real popsicle sticks
khaki with a leopard print or zebra print border for a "We're Wild About Theta" party
If anyone ever wants help with their nametag, or any group wants help, let me know. I'm obsessed! I think I'll probably have nametag withdrawal this fall.