These cute little pen holders made an appearance a few years ago, and then faded from the scene. We have brought back a sampling of them. Designed to hold a pen upright with no effort they claim that they can accommodate sizes from 7-10mm, but our testing shows that somewhat slimmer and thicker pens can be held satisfactorily.
Product photos show a Montblanc 149, Platinum 3776, and a Jinhao 9019 being held.
Unfortunately, due to their size, these require parcel post shipping.