open question: business stationary

white correspondence cards with black & blue borderlemon framed small correspondence cards
[Kate Spade’s personal stationary collection by Crane]

Dear friends — I have a question for you!

I’m looking for sources of inspiration for some modern, yet still very professional, personal stationary. I’d like to help one of my lovely friends in business school save some debt for something else and assist her in the design of something she could print on her own.

So… if you had unlimited pennies, where would you go to buy such stationary???