How do you Reward your Child?

How do you reward your child after they keep succeeding?  They get straight A's AGAIN, they place in U.I.L., they haven't missed one day of school this year, and so on and so on.  I am looking for a very original idea.  I get tired of everything being centered around money and what are you going to buy me mentality.

I want to make my daughter understand how proud I am of her without it being so simple as buying another game.  I want it to be a memory.  Something she will always remember.  She is still young enough to truly appreciate whatever I do, without thinking mom is a dork. 

I am welcoming all ideas.