Such a different world we live in now :)
Congratulations! Having done something that someone is ready to pay (anything) for is a great achievement!
I only ever had had a single $1 donation made to one of my open-source projects.
It came with a angry message telling me to stop the e-begging (the e-begging was that I had written "If you'd like to show your appreciation for this free game, consider donating a small amount to [paypal link]" xD