Corner Elizabeth and Bourke streets. No ratings because I haven't actually been there yet.
Upper (ground) level, near top of western central escalators, opposite Swarovski. Has moved from old location on website (still within Chadstone Shopping Centre).
Paradise Pen is the only major pen store in Las Vegas. There are a couple of stores that sell a handful of pens, but just as a minor addition to their main stock of stationery and related items.
PP is located on the Strip, in the Fashion Show Mall, so it's easy to find, though you may have to deal with traffic and parking difficulties.
Mazzini47 is a luxury store in Pordenone (North-east of Italy). They sell all kind of elegant and design gifts, from writing instruments, to business bags, to clocks, to leather items.
I really like this shop because of the kindness of its employees, the great quality of its products and the superb customer service.