Mike Knudsen inquired as to where to find the music box.
Here's what I was able to find out when I was searching for one.
The bigger model can only be found at Sam's Club or on eBay, as
far as I know.  I wound up buying the bigger model on eBay.  See
  http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=218994847

The Synphonium model can be ordered for $85.00 & free shipping from
  http://deckthehouse.com/shop.asp?ID=17
and for $90.00 & no free shipping from
  http://buyitnow.com/detailed.cgi?pcode=11020030000&t=1&item=96526001
(from the main page search for "Mr Christmas").

Here is the email address of the customer service rep at Mr. Christmas
that I've worked with in the past:  <spatel@mrchristmas.com>

Mike Jardin

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The following stores carry Mr. Christmas items:

A Christmas Place, A.L. Damman Co., A Visconti & Sons
Ace Hdw, Aco Hdw, All American Home Center
Alsto's Handy Helpers, Ann & Hope, Andersons Retail Division
American Sales, Apex, Associated Merch Corp
Atlantic Bingo Supply Inc, Beach Basket, Bethany Trailers
Blair Corp, Bob's Garden World, BJ's Wholesale Club
Bordline Nursery, Bradlees's, Branch Brook
California Backyard, California Do It Center, Caravansary
Cavanagh Group Int, Celebration Fantastic, Chalmark/Christmas Palace
Christmas Corner, Christmas Haus, Christmas Loft
Christmas Place, Christmas Shoppe, Coast Guard Exchange
Consolidated Stores, Costco, Craft Mart
Crazy Collector, Delhi Flower & Garden, Dept 56
Disney Stores, Dixieline, Donzell's Nursery & Garden
Eagle Hardware & Garden, Elder Beerman, Eloise Collectibles
English Gardens, Evergreen Home & Garden, Everyday's a Holiday
Fabulous Diamonds Inc, F Dohmen Co, Fingerhut
Fortunoff's, Fred Meyer, Friedman Brothers
Gales Westlake Garden Center, Good Catalog, Grandpa Pigeons
H & E Do- It - Yourself, Half Off Card Shop, Hammacher Schlemmer
Hechinger/HQ warehouse, Herbert Luna, Hershey Park Arena Warehouse
Holiday Tree & Tree, Homebase, Home Depot
Home Shopping Network, Jacobson Stores, Javic Wholesale
Joe Collector, Johnny's Nursery, K's Merchandise
Karens Gift, La Boutique, Lawrence J La Pide
L.H. Webb & Sons Market, Litehouse Pools Spas N More, Lord & Taylor
Lowe's, Lunarian, Lyfer USA Corp
Magel's Co., Magical Carousel Shoppe, May Department stores
Menards, Mervyns, Montgomery Ward
Morale Welfare & Rec, Mrs Lackovich's ChristmasHouse  ., Namco
Navy Exchange, North Pole City, Oakwood Farm Christmas Barn
Ogill, Orchard Supply, O Holiday .Com
Old Time Pottery, Pc Acquisition Inc, Pecan Square Emporium
Pike Nurseries, Plantscape, Pocono Gift World
QVC, Ray Wiegands Nursery, Riverton Garden Center
Ronny's Garden World, Rust Wholesale, Sams
Sears, Seaway Importing Co., Shopko
Sleeping Santa, Spebsoqsa, St. Nicks
The Hecht Co, The Wooden Heart, Target
ToyRUS, Trade Services Int, Treasure Island
TrueServ, Turka-Collectibles, Tyrrel Limited
Tyrol Int, Value City, Waccamaw Pottery
Walmart, Walt Disney Attractions, Wayside Gallery
West Coast Liquidators, Westons' Ltd Ed, Wholesale Supply
Wrt World Enterprises, ,

You can order over the Internet at deckthehouse.com, buyitnow.com.