lethalrainbow22: Royal Wedding Hat -- Bidding SOARS to $30K!

5/18/2011 11:10 AM PDT�by TMZ Staff��

Princess Beatrice's crazy royal wedding hat that stole the show on William and Kate's big day is creating a BIDDING FRENZY on eBay -- shooting past the $30k mark with four days left to go!!

0518_princess_hat-ebay2

Ever since the auction began 6 days ago -- the hat has received over 60 bids ... with the current bid listed at $32,478.56.

Bea had released a statement on the hat ... saying, "I've been amazed by the amount of attention the hat has attracted. It's a wonderful opportunity to raise as much money as possible for two fantastic charities. I hope whoever wins the auction has as much fun with the hat as I have."

The auction closes on May 22 -- and all proceeds will be equally split between UNICEF and Children in Crisis.