When I was dating my husband, I answered him this way for a dance:
I made up a poem that was similar to this:
I'm so excited you asked me, here's what you need to know:
Count the beans one by one and then it will show
the answer to the question you've been waiting to hear
for the (name of dance) is so very near
99 beans and I'm sorry to say, the answer is no. I can not make it, I can not go.
100 beans and the answer is YES! I would love to go, it would be the best!
So hurry and count, do not delay, time is of the essence I must say... count them carefully one by one, and you will have my answer when you are done.
Then, I put 99 jelly beans inside a mason jar...
And I put the 100th jelly bean inside an envelope that was delivered later with a stuffed animal an hour later with the card that just said YES! and my name.
Just a suggestion.