For my chapter, Alpha Psi, each MC class creates a paddle, and then presents it at activation. It's a fun low-stress bonding activity for the MC's. We have a few stipulations, but it's pretty open to their imagination.
If you'd like to see pictures of the last two classes',
here's Epsilon's:
http://sigmaalpha.photosite.com/alph...ge_paddle.html
aannnd here's Zeta's:
http://sigmaalpha.photosite.com/alph...ation_006.html
I hope that helps.