Hi StopandGo80,
Not that I know of, but there are a number of extensions around the web, which aren't in the Extensions menu. So you could try searching. (Although I don't find "Extrude2" in the menu either, so maybe you already have been searching?)
Another idea. I know I've seen shapes like this in draw feature of Word and OpenOffice Writer/ OO Draw. Maybe you could draw the shapes there and copy/paste or import to Inkscape?
I think that would make for a really nice extension though! One that could draw a wide variety of shapes and forms, maybe even volumetric stuff. Oh, that reminds me -- if you need them 3d, I wonder if
Blender does this?
Sorry, I wish I could be more help
