For me, it all started so innocently with a Zoom Broom (that's the one I had as a kid). Then I decided I needed them all....and that took 5 years to accomplish.
I've considered upscaling them all to about 4" tubing. Anything bigger, and some of them get unwieldy.
I remember a two tube and one fin rocket as a kid, I am 99% sure it was a "Missile toe" so when this thing showed up on e-bay,, well, I had to have it.
I have a 4" Goonie done on Rocksim, I will rescale it to match up with the Missile toe.