By MICHAEL DONAHUE, Scripps Howard News Service
Avant-garde grills come out of back yard and into spotlight
When you think of a barbecue grill or smoker, you think of a circular or rectangular shape on a stand. Right?Think again.The mustard-yellow Marvelous Mobile Modular Hot Dog Grill looks more like a drum kit than a barbecue grill.The Whistling Piglet smoker has an attached keyboard and calliope pipes.

