It is actually a mousse can pipe.....or can be made from a small shaving cream can...

http://www.spadtothebone.com/SPAD/Mufflers/

Here is just one of many designs.....

Do a search for "mousse can mufflers" "mousse can pipes"

"moose can mufflers" "mouse can pipes"

many posts about them.....

They are also available ready made....