Here is a solution....I ship my cues in pvc pipe 2-3" diameter ---take a 4 foot piece cut it down to 38 inches ----buy 2 end caps and pvc glue.....glue the one end cap on the pipe...place the cue inside make sure it cant move with packing material around it, pack the 6-8 " free space with carboard and glue the other end cap on it...mark a line on the outside of the end with the carboard filler to show ur customer where to cut the cap off to remove the cue. I ship my cues thru the usps this way....insured....no problems so far.
If u try to ship them this way thru ups or fedex they will require you to place the pvc tube in a carboard triangular shipping box...
And that looks like a pipe bomb.
The cues were in a hefty case .
None were damaged.
The whole package went missing .