Hello Jackie Avis,sorry,we are afraid that the time is a bit too rush to reach you by May 10th.
If you order the costume now (about 4 weeks making costume time) and use the fastest shipping method (Premium Express, 3-6 days shipping time), it will reach you around end of May or early June.
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it. :)