Yea for you!! No more junk! And no more pressure to GIVE gifts to other children on your child's birthday. It's weird!
My advice if you really feel the need/desire to donate something -- as someone else suggested, ask the teacher what she wants. My daughter's 1st grade teacher was dying for Legos for indoor recesses but couldn't afford to buy them herself.
Now for my 2 cents which you did NOT ask for and should probably ignore unless you're bored or just too curious...
We have birthday parties at home to which we (discreetly) invite our children's close friends and we do send them home with something they made at the party or something from the party (but even then I avoid the party favor junk), but I don't send 26 gifts to my kids' classmates at school. Last year several children in my daughter's class told her she was selfish for not bringing them gifts on her birthday! Arrrgh! But I refuse to cave to the pressure. My kids get the junk from the other kids at school, show it to me in the car like it's a great, valuable, awesome treasure, and then throw it in a drawer with all the others, never to be seen again until the great spring cleaning when they throw it away.
And to the other responder about the food, yes, it's all about allergies. Numerous kids couldn't eat the fruit dip someone mentioned. There are so many foods kids are allergic to and so many birthdays. Imagine being the kid who doesn't get to eat the cupcake or the "whatever" birthday treat 26 times every year! There are two children in my son's class (including my son) who would not be able to eat the treat no matter WHAT it is. (Only MY son could eat some things with prior checking from me, but how could I possibly know in advance a parent was going to send in a treat? And odds are it won't be one he could eat anyway.)
And in the words of Forrest Gump, "That's all I got to say 'bout that."