Let's Dress Up, the Upper East Side shop specializing in kids' dress up, hosts costume parties for City-based princesses and knights at The Museum of the City of New York.

Parties are suitable for kids 5 and up, and are held in the museum's dollhouse room. Let's Dress Up staff members (one for every seven kids) hosts the party, providing everything from the china (for the tea party) and decorations to the costumes and photo area.

Parties last 1 and 1/2 hours, and include a meal of sandwiches, muffins and bagels, lemonade and birthday cake.

Prices start at $1550 for the first 15 guests, and includes a $650 contribution to the museum. Additional guests cost $50 each, and up to 40 children can be accommodated.