Sir Paul McCartney's estranged wife Heather Mills has splashed out $200,000 (GBP100,000) on a lavish bash for her daughter's fourth birthday. Mills - who is currently locked in a divorce settlement with the former Beatles legend - threw a Disney-themed party for the couple's daughter, Beatrice, on Saturday (27Oct07), a few days ahead of her 30 October birthday. The celebration saw trampolines and bouncy castles erected in the grounds of Mills' mansion in East Sussex, south east England, compete with a cinema and water fountains. And Mills' generosity didn't stop there - she also bought the child her very own pony. But Mills has been criticised for spending so much cash on one night. A source tells British newspaper The Sun, "It was one hell of a party and cost a fortune. To Heather that amount is small change. Some guests even took home champagne and wine..." MCCartney also made a brief appearance at the party, but left after 20 minutes, according to reports. The star has offered Mills $40 million (GBP20 million) in a financial settlement - but she has allegedly refused to sign for less than $100 million (GBP50 million).