Damn...Guilty as charged! I was one of those missionaries. I also wrote stationery merchants in the US in the early 2000s to request they carry Hi-Tec C pens, brush pens, paper and binders from Japan, etc. (Hell, my time was split into JPN/BRA and I had spent many days sniffing the air for Brazilian cooking while bicycling around, so I was buying guarana and things too)
I was enthusiastically introduced to the hi-tec my first month in country in 1997. Brightened my day considering I was eating carrot sandwiches at the time.
By the time I was done with my stint, my average handwriting dimensions had shrunken by half at least! And we broke the damn clips on those hi-tecs every week, but some of mine went through two typhoons on a bicycle and never stopped working.
I couldn't bear the taste of American candy for at least a few months after I came back to the states...but yeah nowadays it's great, you can live anywhere and eat other nations' candy if you so please. Devoured some from the UK not so long ago.
Oh. And the food I was most sick of from Japan? Spaghetti, French toast, pancakes...it was some of the cheapest stuff you could make there. A 100 Yen store packet of sauce and box of pasta could be a massive meal for a couple dudes even if they were on a bike all day.
(No longer practicing Mormon but lots of fond memories of volunteering in rojin homes ;-))