A bunch of NOS Pilot Pluminix pens with F and B nibs

The question of getting replacement nibs for the Pilot MR (also known as MR1/MR2/MR3 in some markets, and technically identical to the Cocoon in the Japanese domestic market, and the 88G in the Chinese market) and Prera fountain pens keeps coming up in online forums, sometimes as a matter of repairing nibs are damaged, or otherwise for variety since those models only come factory-fitted with (regular round-tipped) F and M nibs, and in limited cases (e.g. the Prera iro-aiwith clear pen bodies), broad-edged CM (Calligraphy Medium) nibs.

Pilot does not offer those as retail products in any market, irrespective of imagined demand by a tiny minority of consumers, although I see it is possible to order online (including from overseas, for delivery to Australia, Brazil, Canada, Denmark, and USA) on internationally accessible marketplace platforms such as Taobao.

The ‘standard’ answer to that question is hence: buy a cheaper new Pilot pen (presumably in the regional market that is local to oneself) if one's consumer-minded priority is cost minimisation, and reduce it to being a nib donor. It'd be tougher if one is a staunch environmentalist who decries the consumption of plastic items — such as parts in an otherwise unwanted new fountain pen — unnecessarily; the option of paying for intangible repair service by a nibmeister (and shipping service by courier or postal agencies) is the alternative, albeit less economical for what one physically has to show for it even if all goes well.

These pens are an example of buying a whole pen for just the nib; and they happen to be quite economical. The Pluminix is a discontinued model, and the somewhat dirty exteriors of the retail packaging really drives home that the items are new old stock. Their nibs are broad-edged (and fitting that categorisation, even in F width grade) and untipped, thus representing options — in the name of variety — that one just cannot buy in Prera, MR/Cocoon/88G, 78G (and 78G+), Kakuno, Explorer/Lightive fountain pen as a retail product in any market. I picked up a fair few Prera iro-ai pens with M nibs, as that was/is the only nib option stocked, from Officeworks (national chain of office supplies stores in Australia) cheaply last year; but I have no use for (round-tipped) M nibs personally, and I imagine that others in my local fountain pen hobbyist community may see it as value-add, if I can offer those Prera iro-ai pens with alternative/additional nibs that are authentically Pilot products made in Japan.

(I already have broad-edged F, M, and B nibs from Pilot Enso lettering sets with Plumix pens, those being the ‘big brother’ of the Pluminix pens with identical nibs but longer pen bodies. At the moment, they're installed in a handful of Pilot 78G pen bodies I bought well over a decade ago.)