I have told my VPM to order how many you got last year (new member number) and then about 5-6 more for COB's... you can use them for the spring COB class OR give to advisors during rush that help out as a thank you, house corp, visiting field consultant, or as room decorations for the following formal rush/COB events... and prize give aways...
Remember to order for all actives even your Rho Chi's