"Then, there was a Swiss company that made egg shaped trailers. "

We've got one with a Twin Astir RG in it. Ouch. Great for removing gelcoat and skin and punishing your muscles. Assembling it out of that trailer always makes me wish there really was a product called Flintstones' Chewable Morphine available. Since there isn't I usually end up grading how well an assembly went by the number of scrapes/cuts/Advils taken afterwards.