First, hopefully your chapter has some form of a spending limit and even a small budget for buiying some standard things because buying 'lil gifts should definately not be about who spends the most $$$. For example, my chapter set aside a budget to buy all new members 'house letters' for initiation, and we had $20 limit on other gifts. I think this is important otherwise spending can get seriously out of control. Sorry for the aside... I'll step off my soapbox now!
back to topic... here were some of the things I think are nice ideas:
* Notepads/kappa stationary
* Keychains
* Picture frames (If you are creative you can decorate yourself)
* Kappa things to wear - this one depends on the person - a pair of flip-flops, a kappa t-shirt, kappa shorts.. etc
* Scrapbooking items (again, depends on the person)
If you want to go the cheap-but-sentamental route, one of the neatest key-sis gifts I have seen was a scrapbook partially filled.. the idea being you buy one of those scrapbooks where you can add extra pages to them, and then you start the scrapbook with pictures from their new-member period - bid day pictures, sleepover pictures, just random hanging out pictures, and so on. Then you leave pages for them to fill over the years.
good luck - should be fun shopping
)
Loyally,
Paula