The search results point to a few different Stanley floral designs, which might be what you are referring to as the "Original Floral Stanely Mug - Multicolor."

The most prominent "Multicolor" or patterned floral designs currently or recently available from Stanley's official collections are usually found on the Quencher H2.0 FlowState Tumbler.

Two specific floral designs that have been popular are:

1. Resort Floral: This is described as a cream-colored vessel with a glossy red floral pattern and is available in various sizes of the Quencher H2.0 FlowState™ Tumbler (e.g., 30 oz, 40 oz).1

2. Conch Floral: This appears as a new arrival on some retailer sites, available in a 20 oz size of The Quencher H2.2O FlowState™ Tumbler.

There are also many custom and engraved floral designs, often in multicolor, sold by third-party sellers on sites like Etsy.3

To find the exact mug you're looking for, you might need to check with local retailers or online marketplaces, especially if it was a limited edition or a past season's color/design.

If you can provide any more details, such as the size (e.g., 30 oz, 40 oz) or the dominant colors in the floral pattern, I might be able to find more specific information!