3/4 inch round wooden disks ( same size as roundels)
Paint them and glue the token on top.
What you got is an easier to pick up token since it’s thicker.
––I’ve come to prefer the new HBG markers for some of the same reasons you’ve just mentioned: They’re thicker, thus easier to pick-up and they are have much improved graphics and colors over the OOB markers. See below: OOB on left,….HBG on right.
----For most ot the “standard” territory markers, I still prefer having the bases of my Infantry units painted with their national insignia, thus making it unecessary to have to use “territory markers” at all.