Just in time for the holiday season, four firms are advising on the $15.4 billion sale of consumer products company Jarden Corp. to industry giant Newell Rubbermaid Inc. in a megamerger with enough products to fill several Christmas catalogs.

The cash-and-stock deal, the latest in a series of transactions by both companies, will create a consumer products conglomerate called Newell Brands that unites the owners of popular household items such as Coleman coolers, Crock-Pot cookers, Graco baby strollers, Mr. Coffee machines, Oster and Sunbeam kitchen appliances, Rawlings baseball gloves, Sharpie pens and scented candle stalwart Yankee Candle.