I'm trying to construct a giant wasp for yard art. I'll form the tail section first then build the rest to scale. In looking at images of wasps, the tail is not shaped like a hot dog (which eliminates pipe caps welded to a length of straight pipe.) It's shaped more like a football, tapered at both ends and fat in the middle.

Anyone have any ideas on how to build a metal football? I got one hint to trace out the individual panels that make up the ball, then cut metal panels in the same shape, form and weld. I don't have an English wheel or sandbags and lack the skill level to form them any other way and have it look even remotely correct for the compound curvature involved. I'm open for hints and guidance. Thanks!

cog4151at hotmail dot com