Go to new --> Family, and find the "Metric Generic Model ceiling based" template, or any other "ceiling based" (CB) template ie. electric fixture CB, lighting fixture CB etc.
OPTION 1:
You can get app such as RPC Creator from Archvision http://www.archvision.com/products/plugin#rpc-creator-pro
OPTION 2:
OR...Alternatively; you can create something with Revit and Photoshop using a Mass Element/Surface and mapping a bitmap with alpha mask on it...
Edit: Option 2 is similar to what @constantin.stroescu described in detail on the following discussion RPC Entourage - How to make them in Revit https://forums.autodesk.com/t5/revit-architecture-forum/rpc-entourage-custom-make-in-revit-how/m-p/8...
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