Back in the day when rod lockers were 6' long, some rods were made to collapse from 7'6'' or more to 6'. I still use a couple of flipping sticks and crankbait rods that were made like that.  Do they still make these?  

I think bps still makes a flipping rod with a telescopic butt. Don't think it shortens it a foot and a half though.

I've seen telescoping travel rods....and there's a company that makes rods designed for kayakers; Manley; ...but I believe it is just removable/interchangeable butt section -- might not get you to the length you need.

 

Info and models might be a little dated, but the discussion may be of some help: 

 

I had a  7'6" years ago but would only go down to 7".

With the new regs to go up to 10’foot rods... a few manufacturers have come out with telescopic rods.  One is Wright McGill another is Veritas.  Wright McGill is one HEAVY rod... have no idea how someone could fish with it from a fatigue standpoint.  

Didnt Castaway make some back in the 90's- early 2000's?

I still have quite a few actually. From 80s 90s. They are 6'6" down to 5'6", and couple 7'6" down to 6'6"

The ones I have seen at BPS were 7/6 that collapsed down to 6/6.