Since it's going to be an April party, I think that a soft and cheery color palette would be ideal.
I have a bunch of this fabric (from Ikea) that I plan to use on the tables for tablecloths:

These napkins from Ikea are a lovely color (and they're cheap! only $1.99 for 50).
And I plan to make a birthday banner along these lines, but different colors methinks:

And...I have to make a decision about floral centerpieces. Here are the contenders:




Which do YOU think I should use?