It sounds like you may be referring to the Japanese tetsubo (which will use Maul rules). The Chan Zhang (Monk's cudgel) is this:
View attachment 64391
Here's an example of one of the new Martial Weapons not really covered by equivalencies:
Meteor Hammer 5 gp 1d6 bludgeoning or piercing 4 lb. Finesse, reach, two-handed
The meteor hammer (liu xing chui) is a length of slender chain around 3-4 yards in length, weighted at one or both ends with a metal sphere the size of a large egg. The flying weight (shuang tao fei chui) is similar but has a conical metal bludgeoning head instead. Almost identical is the rope dart (sen biao) except that it replaces the bludgeoning heads with a heavy metal dart instead, causing it to do piercing rather than bludgeoning damage. It cannot be used with the Great Weapon Fighter style.
Would folks be interested in a pdf of the final Equivalents and New Weapons document when it's finished shortly?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.